# Paleo-pCO2 Database Miocene C3 Plant pCO2 Data from Clarkia, Idaho #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # Template Version 4.0 # Encoding: UTF-8 # NOTE: Please cite original publication, NOAA Landing Page URL, dataset and publication DOIs (where available), and date accessed when using downloaded data. # If there is no publication information, please cite investigator, study title, NOAA Landing Page URL, and date accessed. # # Description/Documentation lines begin with '#' followed by a space # Data lines have no '#' # # NOAA_Landing_Page: https://www.ncdc.noaa.gov/access/paleo-search/study/36133 # Landing_Page_Description: NOAA Landing Page of this file's parent study, which includes all study metadata. # # Study_Level_JSON_Metadata: https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/json/noaa-forcing-36133.json # Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata. # # Data_Type: Climate Forcing # # Dataset_DOI: # # Science_Keywords: #--------------------------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/climate_forcing/trace_gases/Paleo-pCO2/land_plant_d13c_1_steinthorsdottir_2021.txt # Data_Download_Description: NOAA Template File; Miocene C3 Plant pCO2 Data # #--------------------------------------- # Contribution_Date # Date: 2022-03-08 #--------------------------------------- # File_Last_Modified_Date # Date: 2022-10-19 #--------------------------------------- # Title # Study_Name: Paleo-pCO2 Database Miocene C3 Plant pCO2 Data from Clarkia, Idaho #--------------------------------------- # Investigators # Investigators: Steinthorsdottir, Margret (https://orcid.org/https://orcid.org/0000-0002-7893-1142); Jardine, Phillip (https://orcid.org/https://orcid.org/0000-0002-8268-2353) ;Rember, William #--------------------------------------- # Description_Notes_and_Keywords # Description: Site P33 is located at 46.99 N, -116.27 W # File updated in October 2022 - new paleo pCO2 format #--------------------------------------- # Publication # Authors: Steinthorsdottir, M. , Jardine, P.E., and Rember, W.C. # Published_Date_or_Year: 2021 # Published_Title: Near-future pCO2 during the hot Miocene Climatic Optimum # Journal_Name: Paleoceanography and Paleoclimatology # Volume: 36 # Edition: # Issue: 1 # Pages: # Report_Number: e2020PA003900 # DOI: 10.1029/2020PA003900 # Online_Resource: # Full_Citation: # Abstract: To improve future predictions of anthropogenic climate change, a better understanding of the relationship between global temperature and atmospheric concentrations of CO2 (pCO2), or climate sensitivity, is urgently required. Analyzing proxy data from climate change episodes in the past is necessary to achieve this goal, with certain geologic periods, such as the Miocene climatic optimum (MCO), a transient period of global warming with global temperatures up to ~7 C higher than today, increasingly viewed as good analogues to future climate under present emission scenarios. However, a problem remains that climate models cannot reproduce MCO temperatures with less than ~800 ppm pCO2, while most previously published proxies record pCO2 < 450 ppm. Here, we reconstructed MCO pCO2 with a multitaxon fossil leaf database from the well-dated MCO Lagerstätte deposits of Clarkia, Idaho, USA, using four current methods of pCO2 reconstructions. The methods are principally based on either stomatal densities, carbon isotopes, or a combination of both—thus offering independent results. The total of six reconstructions mostly record pCO2 of ~450–550 ppm. Although slightly higher than previously reconstructed pCO2, the discrepancy with the ~800 ppm required by climate models remains. We conclude that climate sensitivity was heightened during MCO, indicating that highly elevated temperatures can occur at relatively moderate pCO2. Ever higher climate sensitivity with rising temperatures should be very seriously considered in future predictions of climate change. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Bolin Centre for Climate Research # Grant: #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Swedish Research Council # Grant: NT-7 2016 04905 #--------------------------------------- # Site_Information # Site_Name: Clarkia Fossil Lagerstatte Deposits (P-33 and P-37) # Location: Idaho # Northernmost_Latitude: 46.99 # Southernmost_Latitude: 46.99 # Easternmost_Longitude: -116.27 # Westernmost_Longitude: -116.27 # Elevation_m: #--------------------------------------- # Data_Collection # Collection_Name: c3plants_pc02_steinthorsdottir2021 # First_Year: 15780000 # Last_Year: 15740000 # Time_Unit: calendar year before present # Core_Length_m: # Parameter_Keywords: carbon dioxide # Notes: Method 1: Can be used when d13COM at a reference time (time 0) is known. #--------------------------------------- # Chronology_Information # Chronology: #--------------------------------------- # Variables # PaST_Thesaurus_Download_Resource: https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf # PaST_Thesaurus_Download_Description: Paleoenvironmental Standard Terms (PaST) Thesaurus terms, definitions, and relationships in SKOS format. # # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab-var components: what, material, error, units, seasonality, data type, detail, method, C or N for Character or Numeric data) # #------------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing_Values: NA proxy first_author_last_name publication_year doi age_ka Age_uncertainty_pos_ka Age_uncertainty_neg_ka CO2_ppm CO2_uncertainty_pos_ppm CO2_uncertainty_neg_ppm Name of person entering data Contact email address reference of the data product Publication Year DOI Additional publications that are part of the dataset Explanation for each additional publications link to the dataset Sample ID Rock formation name Modern Latitude (decimal degree, south negative) Modern Longitude (decimal degree, west negative) Paleo Latitude (decimal degree, south negative) Paleo Longitude (decimal degree, west negative) stratigraphic level (m) Age (Ma) Age_max (Ma) Age_min (Ma) Reference(s) for age d13COM, t (‰) d13COM, t uncertainty ±2s (‰ PDB) n d13COM, t (number of analyses) Reference(s) for d13COM, t d13Catm, t=0 (‰ PDB) d13Catm, t=0 uncertainty ±1s (‰ PDB) n d13Catm, t=0 (number of replicate analyses) reference for d13Catm, t=0 d13COM, t=0 (‰ PDB) d13COM, t=0 uncertainty ±2s (‰ PDB) n d13COM, t=0 (number of replicate analyses) reference for d13COM, t=0 d13Catm, t (‰ PDB) d13Catm, t uncertainty ±2s (‰ PDB) n d13Catm, t (number of replicate analyses) reference for d13Catm, t pCO2, t=0 (ppmv) pCO2, t=0 uncertainty ± 1s (ppmv) reference for pCO2, t=0 Type of OM substrates Bulk organic matter or n-alkanes etc. Chain length if n-alkanes reference on OM substrates Mean Annual Precipitation mm/yr Mean Annual Precipitation_uncertainty_pos mm/yr Mean Annual Precipitation_uncertainty_neg mm/yr Method for MAP estimates reference on MAP A (unitless) A uncertainty ± 1s B (unitless) B uncertainty ± 1s C (unitless) C uncertainty ± 1s Atmospheric CO2 ppmV Atmospheric CO2_max ppmV Atmospheric CO2_min ppmV Atmopsheric CO2_97.5 percentile ppmV Atmopsheric CO2_2.5 percentile ppmV Reference for CO2 determination notes land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 389 568 179 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Bev 1 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -25.86 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 389.22 NA NA 957.04 209.90 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 460 785 223 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Bev 2 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -26.54 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 460.45 NA NA 1245.68 237.27 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 459 796 220 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Bev 3 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -26.59 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 459.30 NA NA 1255.66 239.35 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 624 1814 320 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Bev 4 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.76 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 624.33 NA NA 2438.57 304.14 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 706 2832 375 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Bef 1 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -28.21 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 705.82 NA NA 3537.95 330.98 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 551 1308 275 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Bef 2 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.33 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 550.56 NA NA 1858.09 275.95 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 534 1202 264 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Bef 3 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.19 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 533.78 NA NA 1735.40 269.34 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 638 2096 330 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Bef 4 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.91 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 638.32 NA NA 2734.56 308.56 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 648 2176 338 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Que 1 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.9 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 648.39 NA NA 2824.04 310.30 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 515 1071 254 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Que 2 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.05 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 515.14 NA NA 1586.15 261.11 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 601 1681 308 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Que 3 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.63 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 600.89 NA NA 2282.28 292.60 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 529 1156 261 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Que 4 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.16 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 529.48 NA NA 1685.07 268.73 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 489 927 237 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Que 5 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -26.86 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 488.83 NA NA 1415.79 251.73 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 536 1232 267 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Que 6 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.2 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 535.75 NA NA 1767.96 268.38 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 500 946 245 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Que 7 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -26.91 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 500.41 NA NA 1446.34 255.29 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 386 545 179 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Que 8 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -25.8 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 386.10 NA NA 931.01 206.86 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 440 707 207 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Que 9 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -26.38 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 439.61 NA NA 1146.67 232.89 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 613 1951 315 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Que 10 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.72 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 613.24 NA NA 2564.28 298.27 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 532 1211 260 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Que 11 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.2 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 531.57 NA NA 1742.51 271.09 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 746 3371 407 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Que 12 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -28.39 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 745.50 NA NA 4116.76 338.08 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 513 1009 254 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Que 13 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.02 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 512.83 NA NA 1521.72 259.08 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 682 2474 360 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Que 14 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -28.1 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 681.86 NA NA 3155.49 321.76 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 536 1225 267 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Que 15 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.2 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 535.96 NA NA 1760.98 269.02 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 456 788 216 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Que 16 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -26.54 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 455.86 NA NA 1244.11 240.02 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 436 707 206 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Que 17 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -26.38 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 436.40 NA NA 1143.08 229.96 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 527 1224 259 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P37 Que 18 Latah 46.9923 -116.276 NA NA P-37 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.14 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 527.02 NA NA 1750.97 268.03 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 714 2872 379 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Bev 1 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -28.29 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 713.59 NA NA 3585.36 335.01 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 530 1216 262 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Bev 2 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.18 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 530.17 NA NA 1745.68 268.63 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 754 3337 414 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Bev 3 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -28.44 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 753.98 NA NA 4090.85 339.55 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 804 4193 434 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Bev 4 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -28.69 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 804.17 NA NA 4997.37 369.73 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 535 1167 264 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Bev 5 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.19 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 534.52 NA NA 1701.46 270.80 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 454 747 219 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Bev 6 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -26.51 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 453.92 NA NA 1200.52 235.16 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 623 1824 325 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Bev 7 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.75 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 622.50 NA NA 2446.84 297.62 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 645 2247 332 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Bev 8 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.89 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 644.51 NA NA 2891.76 312.49 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 584 1641 298 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Bev 9 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.55 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 584.16 NA NA 2224.93 286.08 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 509 1065 246 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Bef 1 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 509.17 NA NA 1574.51 263.40 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 582 1560 296 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Bef 2 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.54 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 582.35 NA NA 2142.44 286.58 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 825 4463 459 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Bef 3 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -28.72 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 825.38 NA NA 5288.49 366.48 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 576 1458 295 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Bef 4 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.5 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 576.46 NA NA 2034.75 281.59 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 674 2520 352 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Bef 5 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -28.08 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 673.60 NA NA 3193.41 321.14 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 673 2439 353 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Bef 6 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -28.02 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 672.55 NA NA 3111.71 319.99 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 597 1725 302 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Bef 7 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.58 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 596.80 NA NA 2321.42 294.32 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 616 1742 311 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Laur 1 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.75 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 615.95 NA NA 2357.54 304.74 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 622 1909 316 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Laur 2 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.76 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 621.53 NA NA 2530.67 305.91 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 539 1157 266 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Laur 3 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.24 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 539.11 NA NA 1695.81 273.59 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 539 1190 269 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Laur 4 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.21 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 539.22 NA NA 1729.13 270.25 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 935 6130 540 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Laur 5 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -29.11 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 935.42 NA NA 7065.63 395.54 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 389 536 178 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Laur 6 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -25.84 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 389.27 NA NA 925.19 211.29 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 533 1205 261 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Que 1 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.19 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 533.26 NA NA 1737.92 272.23 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 782 3534 432 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Que 2 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -28.54 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 782.00 NA NA 4316.48 349.75 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 577 1463 289 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Que 3 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.49 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 576.53 NA NA 2039.37 287.12 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 492 991 239 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Que 4 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -26.87 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 491.78 NA NA 1482.59 252.67 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 650 2053 337 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Que 5 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.92 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 649.69 NA NA 2702.74 312.43 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 551 1357 280 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Que 6 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.29 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 551.41 NA NA 1908.19 271.39 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 691 2574 366 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Que 7 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -28.19 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 691.43 NA NA 3265.34 325.67 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 592 1645 300 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Que 8 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.6 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 591.91 NA NA 2237.13 291.53 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 694 2502 370 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Que 9 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -28.16 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 694.23 NA NA 3196.57 323.92 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 576 1553 290 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Ost 1 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.48 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 576.11 NA NA 2129.50 286.60 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 542 1286 270 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Ost 2 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.23 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 541.90 NA NA 1827.46 272.24 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 528 1189 263 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Ost 3 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -27.13 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 528.24 NA NA 1717.17 264.75 Steinthorsdottir et al. (2021) land_plant_d13C_1 Steinthorsdottir 2021 10.1029/2020PA003900 15780 39 39 680 2875 361 Margret Steinthorsdottir margret.steinthorsdottir@nrm.se Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 2021 10.1029/2020PA003900 NA NA P33 Ost 4 Latah 46.9923 -116.276 NA NA P-33 site 15.78 15.82 15.74 Kasbohm & Schoene, 2018 -28.07 0.066 1 Steinthorsdottir, M., Jardine, P.E., and Rember, W.C., 2021. Near-future pCO2 during the hot Miocene Climatic Optimum. Paleoceanography and Paleoclimatology, 36, e2020PA003900 -6.4 0.1 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -25.1 3.2 NA Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 -5.3 0.4 NA Tipple, B. J., Meyers, S. R., & Pagani, M. 2010. Carbon isotope ratio of Cenozoic CO2: A comparative evaluation of available geochemical proxies. Paleoceanography, 25, PA3202. 270 7 Cui, Y. and Schubert, B.A. 2016. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta, 172, 127-138 Leaf material NA NA NA NA NA NA NA 28.26 0 0.22 0.028 (4.4*A)/((A-4.4)*B) Monte Carlo Propagated 680.09 NA NA 3554.63 319.02 Steinthorsdottir et al. (2021)