PP005
Centennial Session: The 100s of CO2
Session ID#: 82190
Session Description:
The 100s of CO2: When AGU was established 100 years ago in 1919, atmospheric CO2 concentrations were 303 ppm. Today, 100 years later, CO2 levels are over 410 ppm. According to RCP 8.5 scenarios, CO2 concentrations could reach over 900 ppm by 2100. This session seeks to bring together scientists studying these 100s of CO2 (100s of ppm, 100s of years): 100 to 1000 years in the future, 100 thousand or 100 million years in the past, 100 ppm above today’s atmospheric CO2 concentration, etc. We welcome abstracts focusing on (but not limited to) paleo measurements of CO2, proxy reconstructions of climate over these 100s of CO2, modeling efforts to understand the factors controlling the 100s of CO2, and the impacts of the 100s of CO2 we may experience in the future. In celebration of AGU’s centennial, we encourage the use of “100” in your abstract.
Index Terms:
1626 Global climate models [GLOBAL CHANGE]
4902 Anthropogenic effects [PALEOCEANOGRAPHY]
4930 Greenhouse gases [PALEOCEANOGRAPHY]
4932 Ice cores [PALEOCEANOGRAPHY]
Primary Convener: Jennifer E Hertzberg, Old Dominion University, Ocean, Earth & Atmospheric Sciences, Norfolk, VA, United States
Conveners: Yige Zhang, Texas A&M University, Department of Oceanography, College Station, TX, United States and Petra Dekens, San Francisco State University, San Francisco, CA, United States
Primary Liaison: Jennifer E Hertzberg, University of Connecticut, Groton, CT, United States
The ice core record of atmospheric CO2 variability on the centennial-scale: insights from timing and isotopic tracing (Invited) (496438)
Thomas K Bauska, NERC British Antarctic Survey, Cambridge, United Kingdom, Shaun A Marcott, University of Wisconsin-Madison, Madison, WI, United States and Edward Brook, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
Deep Pacific Oxygenation and Atmospheric CO2 Over the Past 180 kyr (499635)
Franco Marcantonio, Texas A & M University College Station, Department of Geology and Geophysics, College Station, TX, United States, Ryan Hostak, Texas A&M University, College Station, TX, United States, Jennifer E Hertzberg, University of Connecticut, Groton, CT, United States and Matthew W Schmidt, Old Dominion University, Ocean, Earth & Atmospheric Sciences, Norfolk, VA, United States
Early Anthropogenic Impact on Tropical Climate: Validation of Ruddiman’s Hypothesis (500243)
Samantha Claudia Bova1, Yair Rosenthal1, Zhengyu Liu2 and Mi Yan3, (1)Rutgers University New Brunswick, New Brunswick, NJ, United States, (2)The Ohio State University, Columbus, OH, United States, (3)Nanjing Normal University, Nanjing, China
Abandoned boreholes - additional source for CO2 emissions? (513659)
Elad Levintal, Ben-Gurion University of the Negev, Sede Boker, Israel, Hovav Zafrir, Geological Survey Israel, Jerusalem, Israel, Maria Ines Dragila, Oregon State Univ, Corvallis, OR, United States and Noam Weisbrod, Ben-Gurion University of the Negev, Midreshet Ben-Gurion, Israel
Anomalous >2000 year old surface ocean radiocarbon age as evidence for deglacial geologic carbon release (526160)
Patrick A Rafter, University of California Irvine, Irvine, CA, United States, Mathis Hain, University of Southampton, Southampton, United Kingdom, Evan A Solomon, Univ Washington, Seattle, WA, United States, Jose D. Carriquiry, Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanologicas, Ensenada, Mexico, Juan Carlos Herguera, Center for Scientific Research and Higher Education at Ensenada, Ensenada, Mexico, William Robert Gray, University College London, London, United Kingdom, James William Buchanan Rae, University of St Andrews, School of Earth and Environmental Sciences, St Andrews, United Kingdom and John Richard Southon, Univ California, Irvine, CA, United States
Temperature and Iron Fertilization Dominate 100 Parts Per Million Glacial-Interglacial CO2 Changes (557768)
Andreas Schmittner, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, Samar Khatiwala, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom and Juan Muglia, Consejo Nacional de Investigaciones Científicas y Técnicas, CESIMAR, Puerto Madryn, Argentina
Expanding Carbonate-based Oligocene pCO2 (atm) Records Using the δ11B pH- pCO2 Proxy with Emphasis on the Late Oligocene Warming Event (LOWE) (577138)
Wayne Michael Strojie1, Noah Planavsky1, Ellen Thomas1, James William Buchanan Rae2 and Pincelli M Hull3, (1)Yale University, New Haven, CT, United States, (2)University of St Andrews, School of Earth and Environmental Sciences, St Andrews, United Kingdom, (3)Yale University, Department of Geology and Geophysics, New Haven, CT, United States
Reconstruction of atmospheric pCO2 during the Plio-Pleistocene (579925)
Osamu Seki, Hokkaido University, Sapporo, Japan, Tomohisa Irino, Hokkaido Univ, Sapporo, Japan, Keiji Horikawa, University of Toyama, Toyama, Japan, Yusuke Okazaki, Kyushu University, Fukuoka, Japan, Ayako Abe-Ouchi, University of Tokyo, Atmosphere and Ocean Research Institute, Bunkyo-ku, Japan and Jonaotaro Onodera, JAMSTEC, Yokosuka, Japan
Evaluating the Effect of 100s of ppm CO2 on Carbon Isotope Discrimination in Ginkgo (585291)
Mason Scher1,2, Richard Barclay1, Allison A Baczynski3, Jonathan P Wilson4, Patrick Megonigal5 and Scott L Wing6, (1)National Museum of Natural History, Smithsonian Institution, Washington, DC, United States, (2)Drew University, Madison, NJ, United States, (3)Pennsylvania State Univ, University Park, PA, United States, (4)Haverford College, Haverford, PA, United States, (5)Smithsonian Env Research Ctr, Edgewater, MD, United States, (6)Smithsonian Institution, Department of Paleobiology, Washington, DC, United States
Using Preformed Phosphate to Quantify the Role of the Biological Pump in the O(100 ppm) CO2 Drawdown of the Last Ice Age (589131)
Tyler Vollmer, Georgia Institute of Technology Main Campus, Ocean Science and Engineering, Atlanta, GA, United States, Takamitsu Ito, Georgia Institute of Technology, Atlanta, GA, United States and Jean Lynch-Stieglitz, Georgia Tech, Atlanta, GA, United States
Prospects for an archaeal lipid pCO2 paleobarometer (590341)
Ann Pearson1, Sarah J Hurley2, Felix J Elling1, Elise Wilkes3 and Hilary G Close4, (1)Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, (2)University of Colorado Boulder, Boulder, CO, United States, (3)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States, (4)University of Hawaii, Honolulu, HI, United States
The Future of Storing, Provisioning and Using Paleo CO₂ Data (594870)
Ross Whiteford, Lamont Doherty Earth Observatory, New York, NY, United States, Baerbel Hoenisch, Lamont -Doherty Earth Observatory, Palisades, NY, United States, Vicki Lynn Ferrini, LDEO, Palisades, NY, United States and John J Morton, Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, United States
Refining the depth and location of the respired carbon pool in the tropical Pacific over the last 25 kyr using benthic B/Ca (609697)
Brian James Close1, Matthew W Schmidt2, Jennifer E Hertzberg1 and Franco Marcantonio3, (1)Old Dominion University, Norfolk, VA, United States, (2)Old Dominion University, Ocean, Earth & Atmospheric Sciences, Norfolk, VA, United States, (3)Texas A&M University, Geology and Geophysics, College Station, TX, United States
The role of coupled processes in the abrupt termination of the last glaciations (616153)
Ludovic Räss, Stanford Earth Sciences, Stanford, CA, United States, Lowell D Stott, University of Southern California, Los Angeles, CA, United States and Jenny Suckale, Stanford University, Stanford, CA, United States
