Toward a Cenozoic history of atmospheric CO2

• 成果类型: Article
• 署名作者: Honisch, Barbel; Royer, Dana L.; Breecker, Daniel O.; Polissar, Pratigya J.; Bowen, Gabriel J.; Henehan, Michael J.; Cui, Ying; Steinthorsdottir, Margret; McElwain, Jennifer C.; Kohn, Matthew J.; Pearson, Ann; Phelps, Samuel R.; Uno, Kevin T.; Ridgwell, Andy; Anagnostou, Eleni; Austermann, Jacqueline; Badger, Marcus P. S.; Barclay, Richard S.; Bijl, Peter K.; Chalk, Thomas B.; Scotese, Christopher R.; de la Vega, Elwyn; DeConto, Robert M.; Dyez, Kelsey A.; Ferrini, Vicki; Franks, Peter J.; Giulivi, Claudia F.; Gutjahr, Marcus; Harper, Dustin T.; Haynes, Laura L.; Huber, Matthew; Snell, Kathryn E.; Keisling, Benjamin A.; Konrad, Wilfried; Lowenstein, Tim K.; Malinverno, Alberto; Guillermic, Maxence; Mejia, Luz Maria; Milligan, Joseph N.; Morton, John J.; Nordt, Lee; Whiteford, Ross; Roth-Nebelsick, Anita; Rugenstein, Jeremy K. C.; Schaller, Morgan F.; Sheldon, Nathan D.; Sosdian, Sindia; Wilkes, Elise B.; Witkowski, Caitlyn R.; Zhang, Yi Ge; Anderson, Lloyd; Beerling, David J.; Bolton, Clara; Cerling, Thure E.; Cotton, Jennifer M.; Da, Jiawei; Ekart, Douglas D.; Foster, Gavin L.; Greenwood, David R.; Hyland, Ethan G.; Jagniecki, Elliot A.; Jasper, John P.; Kowalczyk, Jennifer B.; Kunzmann, Lutz; Kurschner, Wolfram M.; Lawrence, Charles E.; Lear, Caroline H.; Martinez-Boti, Miguel A.; Maxbauer, Daniel P.; Montagna, Paolo; Naafs, B. David A.; Rae, James W. B.; Raitzsch, Markus; Retallack, Gregory J.; Ring, Simon J.; Seki, Osamu; Sepulveda, Julio; Sinha, Ashish; Tesfamichael, Tekie F.; Tripati, Aradhna; Van der Burgh, Johan; Yu, Jimin; Zachos, James C.; Zhang, Laiming
• 署名单位: Columbia University; Columbia University; Wesleyan University; University of Texas System; University of Texas Austin; University of California System; University of California Santa Cruz; Utah System of Higher Education; University of Utah; University of Bristol; Montclair State University; Swedish Museum of Natural History; Trinity College Dublin; Boise State University; Harvard University; University of California System; University of California Riverside; Helmholtz Association; GEOMAR Helmholtz Center for Ocean Research Kiel; Open University - UK; Smithsonian Institution; Smithsonian National Museum of Natural History; Utrecht University; Aix-Marseille Universite; INRAE; Institut de Recherche pour le Developpement (IRD); Centre National de la Recherche Scientifique (CNRS); Northwestern University; Ollscoil na Gaillimhe-University of Galway; University of Massachusetts System; University of Massachusetts Amherst; University of Michigan System; University of Michigan; University of Sydney; Vassar College; Purdue University System; Purdue University; University of Colorado System; University of Colorado Boulder; University of Texas System; University of Texas Austin; Eberhard Karls University of Tubingen; State University of New York (SUNY) System; Binghamton University, SUNY; University of California System; University of California Los Angeles; University of Bremen; Baylor University; University of St Andrews; Colorado State University System; Colorado State University Fort Collins; Rensselaer Polytechnic Institute; Cardiff University; Texas A&M University System; Texas A&M University College Station; University of Sheffield; California State University System; California State University Northridge; Utah System of Higher Education; Utah Valley University; University of Southampton; NERC National Oceanography Centre; Brandon University; North Carolina State University; Brown University; Leibniz Association; Senckenberg Gesellschaft fur Naturforschung (SGN); University of Oslo; Brown University; Carleton College; Consiglio Nazionale delle Ricerche (CNR); Istituto di Scienze Polari (ISP-CNR); University of Bristol; University of Oregon; Helmholtz Association; Helmholtz-Center Potsdam GFZ German Research Center for Geosciences; Hokkaido University; University of Colorado System; University of Colorado Boulder; University of Colorado System; University of Colorado Boulder; California State University System; California State University Dominguez Hills; Addis Ababa University; Laoshan Laboratory; University of California System; University of California Santa Cruz; China University of Geosciences
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-10437
• DOI: 10.1126/science.adi5177
• 发表日期: 2023-12-08
• 页码: 1136-+
• 关键词: antarctic ice-sheet; carbon-dioxide; concentrating mechanisms; climate sensitivity; c-4 photosynthesis; EVOLUTION; vegetation; origins; rise; ecosystems

摘要

The geological record encodes the relationship between climate and atmospheric carbon dioxide (CO2) over long and short timescales, as well as potential drivers of evolutionary transitions. However, reconstructing CO2 beyond direct measurements requires the use of paleoproxies and herein lies the challenge, as proxies differ in their assumptions, degree of understanding, and even reconstructed values. In this study, we critically evaluated, categorized, and integrated available proxies to create a high-fidelity and transparently constructed atmospheric CO2 record spanning the past 66 million years. This newly constructed record provides clearer evidence for higher Earth system sensitivity in the past and for the role of CO2 thresholds in biological and cryosphere evolution.