PP019
How Greenhouse Climates Worked in the Past: What We are Learning About Climate Change from Studying the Miocene

Session ID#: 78344

Session Description:
The Miocene (23 to 5.3 mya) is a crucial, dynamical interval in Earth's history that provides unparalleled insights into the functioning of greenhouse climates.  At times during the Miocene, Antarctic ice volume was half modern, the Arctic Ocean was ice-free in winter, and extratropical temperatures nearly as warm as in the Eocene. This is an enigma, because the continental configurations and ocean circulation were much closer to modern than in the Paleogene, and atmospheric pCO2 was in the 300-600 ppm range.  Taken at face value, this implies either a system highly sensitive to greenhouse gas forcing or the presence of still unexplained forcings and feedbacks.  

We encourage submissions to this session that elucidate the dynamics of Miocene climate from data and modeling perspectives.  Our goal is to better understand how these kinds of climate function and to provide better paleoclimate constraints to inform the Intergovernmental Panel on Climate Change process.

Index Terms:

1055 Organic and biogenic geochemistry [GEOCHEMISTRY]
1620 Climate dynamics [GLOBAL CHANGE]
4914 Continental climate records [PALEOCEANOGRAPHY]
4928 Global climate models [PALEOCEANOGRAPHY]

Primary Convener:  Matt Huber, Purdue University, West Lafayette, IN, United States
Conveners:  Yige Zhang, Yale University, Department of Geology and Geophysics, New Haven, CT, United States and Francesca Sangiorgi, Utrecht University, Utrecht, Netherlands
Primary Liaison:  Matt Huber, Purdue University, West Lafayette, IN, United States
 
Ocean properties and Antarctic cryosphere dynamics during the early and middle Miocene: results from the IODP Expedition 374 (Ross Sea) (493626)
Francesca Sangiorgi1,2, Evi Wubben1, Imogen Mireille Browne3, Amelia Shevenell4, Justin P Dodd5, Joe Prebble6, Osamu Seki7, Jeanine Ash8, Benjamin Griffin9, Oliver Esper10, David M Harwood11, Peter Bijl1, Robert M Mckay12, Laura De Santis13, Denise K Kulhanek14 and IODP Expedition 374 Scientists, (1)Utrecht University, Utrecht, Netherlands, (2)Marine Palynology and Paleoceanography, Department of Earth Sciences, Faculty of Geosciences, Utrecht University. Laboratory of Palaeobotany and Palynology, Princetonlaan 8, 3584CB Utrecht, The Netherlands, Utrecht, Netherlands, (3)University of South Florida St. Petersburg, College of Marine Science, St Petersburg, FL, United States, (4)University of South Florida, Tampa, FL, United States, (5)Northern Illinois University, Geology and Environmental Geosciences, DeKalb, IL, United States, (6)GNS Science, Wellington, New Zealand, (7)Hokkaido University, Sapporo, Japan, (8)Rice University, Houston, TX, United States, (9)Victoria University, Antarctic Research Centre, Wellington, New Zealand, (10)Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (AWI), Marine Geology, 27568 Bremerhaven, Germany, (11)University of Nebraska Lincoln, Lincoln, NE, United States, (12)Victoria University of Wgtn, Wellington, New Zealand, (13)Ist Nazionale Oceanografia, Sgonico, Italy, (14)T, International Ocean Discovery Program, College Station, TX, United States
 
The late Miocene climate cooling caused the disappearance of the hominoids in Yunnan region, southwestern China (513306)
Pei Li1, Chunxia Zhang2, Chenglong Deng3, Xueping Ji4, Nina G Jablonski5, Haibin Wu6, Yang Fu6, Rixiang Zhu7 and Zhengtang Guo3, (1)Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, Beijing, China, (2)IGG Institute of Geology and Geophysics, Chinese Academy of Sciences, Key Laboratory of Cenozoic Geology and Environment, Beijing, China, (3)Chinese Academy of Sciences, Beijing, China, (4)Department of Paleoanthropology, Yunnan Institute of Cultural Relics and Archeology, Kunming, China, (5)Department of Anthropology, The Pennsylvania State University, University Park, Philadelphia, United States, (6)Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China, (7)Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
 
The Green Old Deal: Enhanced Carbon fertilization in the Early Miocene (516549)
Tammo Reichgelt, University of Connecticut, Groton, CT, United States and William J D'Andrea, Columbia University, Palisades, NY, United States
 
Understanding Miocene Climatic Warmth (520100)
Ashley Dicks and Matt Huber, Purdue University, West Lafayette, IN, United States
 
Carbonate Burial Through The Miocene Climate Optimum: Atlantic Versus Pacific Response (520178)
Alyson Churchill, Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, OR, United States, Mitchell W Lyle, Oregon State University, College of Earth Ocean and Atmospheric Science, Corvallis, OR, United States, Anna Joy Drury, University College London, Department of Earth Sciences, London, United Kingdom, Thomas Westerhold, MARUM - University Bremen, Bremen, Germany and Maria Makarova, Rutgers University New Brunswick, New Brunswick, NJ, United States
 
Miocene Climate-Carbon Cycle Dynamics: A Key to Understand Future Trends? (538498)
Ann Holbourn1, Wolfgang Kuhnt1, Julia Lübbers1, Karlos Guilherme Diemer Kochhann2, Kenji Marc Raymond Matsuzaki3 and Nils Andersen4, (1)University of Kiel, Kiel, Germany, (2)Unisinos University, São Leopoldo, Brazil, (3)Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan, (4)University of Kiel, Leibniz Laboratory for Radiometric Dating and Stable Isotope Research, Kiel, Germany
 
Modeling the Role of Volcanism in the Past 20 Million Years of Global Cooling (547970)
Andrea M Salazar, University of Chicago, Chicago, IL, United States, Weimin Si, Timothy Herbert, Brown University, Earth, Environmental and Planetary Sciences, Providence, RI, United States, Colleen A Dalton, Brown University, Department of Earth, Environmental, and Planetary Sciences, Providence, RI, United States and Alberto E Saal, Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, RI, United States
 
Reduced Continental Weathering and Marine Calcification Linked to Late Neogene Decline in Atmospheric CO2 (552750)
Weimin Si, Brown University, DEEPS, Providence, RI, United States and Yair Rosenthal, Rutgers University, Marine & Coastal Sciences, New Brunswick, NJ, United States
 
Weak Miocene meridional SST gradients imply wetter subtropical conditions (564406)
Natalie Burls, George Mason University, Atmospheric, Oceanic and Earth Sciences, Fairfax, VA, United States, Nicholas Siler, Oregon State University, Corvallis, OR, United States, Spencer Hill and Matthew J Pound, Northumbria University, Geography, Newcastle-Upon-Tyne, United Kingdom
 
Simulations of Miocene climates to infer apes dispersal. (572872)
Gilles Ramstein1, Camille Contoux2, Pierre Sepulchre2, Frederic Fluteau3 and Florence Colleoni4, (1)Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, Paris, France, (2)LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France, (3)Institut de Physique du Globe de Paris, Paris, France, (4)University of Trieste, Trieste, Italy
 
Global cooling controlled open ocean carbon cycling and biological evolution in the twilight zone (Invited) (574965)
Flavia Boscolo-Galazzo1, Katherine A Crichton2, Andy Ridgwell3, Elaine Mawbey4, Bridget Wade4 and Paul N Pearson5, (1)Cardiff University, School of Earth and Ocean Sciences, Cardiff, CF24, United Kingdom, (2)University of Exeter, Exeter, United Kingdom, (3)University of Bristol, School of Earth Sciences, Bristol, United Kingdom, (4)University College London, Department of Earth Sciences, London, United Kingdom, (5)Cardiff University, School for Earth and Ocean Sciences, Cardiff, United Kingdom
 
The Magnitude of Continental Temperature Change during the Middle Miocene Climatic Transition in Southern Europe (578859)
Niklas Löffler1,2, Jens Fiebig2, Wout Krijgsman3 and Andreas Mulch1,2, (1)Senckenberg Biodiversity and Climate Research Centre, Frankfurt (Main), Germany, (2)Goethe University, Institute of Geosciences, Frankfurt (Main), Germany, (3)Utrecht University, Paleomagnetic Laboratory “Fort Hoofddijk”, Utrecht, Netherlands
 
Orbital-scale record of Ross Sea ocean temperatures across the Miocene Climatic Optimum and Middle Miocene Climate Transition (583825)
Amelia Shevenell, University of South Florida, College of Marine Science, St Petersburg, FL, United States, Imogen Mireille Browne, University of University of South Florida,, St. Petersburg, FL, United States, Justin P Dodd, Northern Illinois University, Geology and Environmental Geosciences, DeKalb, IL, United States, R Mark Leckie, Univ Massachusetts, Amherst, MA, United States, Dipa Desai, University of North Carolina at Chapel Hill, Carrboro, NC, United States, Francesca Sangiorgi, Utrecht University, Utrecht, Netherlands, Osamu Seki, Hokkaido University, Sapporo, Japan, Robert M Mckay, Victoria University of Wgtn, Wellington, New Zealand, Laura De Santis, Ist Nazionale Oceanografia, Sgonico, Italy, Denise K Kulhanek, T, International Ocean Discovery Program, College Station, TX, United States and IODP Expedition 374 Scientists, Integrated Ocean Drilling Program, College Station, TX, United States
 
Significant Cooling in the Low Latitude during the mid-Miocene Climate Transition (585148)
Li Li, Tongji University, School of Ocean and Earth Science, Shanghai, China and Qin Xu, Tongji University, School of Ocean and Earth Science, Shanghai, China
 
Astronomical tuning and climate evolution of the late Miocene (8-10.5 Ma) at IODP Site U1338 (586534)
Ze Tao1, Bridget Wade1, Anna Joy Drury1 and Thomas Westerhold2, (1)University College London, Department of Earth Sciences, London, United Kingdom, (2)MARUM - University Bremen, Bremen, Germany
 
The coherent evolution of Miocene global temperature, ecosystems, and greenhouse gas levels (598809)
Timothy Herbert1, Rebecca Rose1, Alexandrina Tzanova1, Weimin Si1, Colleen A Dalton2, Andrea M Salazar3, Rasmus Rumph Frederiksen4, Karen Dybkjaer5 and Katarzyna Sliwinska6, (1)Brown University, DEEPS, Providence, RI, United States, (2)Brown University, Department of Earth, Environmental, and Planetary Sciences, Providence, RI, United States, (3)The University of Chicago, Chicago_, United States, (4)Aarhus University, Aarhus C, Denmark, (5)Geological Survey of Denmark, Copenhagen, Denmark, (6)Stratigrafisk afdeling, Copenhagen K, Denmark
 
Miocene paleoceanographic changes in the North Atlantic from legacy DSDP and ODP sites (603566)
Maria Makarova1, Lucia Bellino2, Sophie Benaroya2, Mariya Galochkina3, Ronan Keating4, Oliver McLellan1, Kenneth G Miller5, Yair Rosenthal6 and James Wright7, (1)Rutgers University New Brunswick, Earth and Planetary Sciences, New Brunswick, NJ, United States, (2)Rutgers University New Brunswick, Earth and Planetary Sciences, New Brunswick, United States, (3)Rutgers University New Brunswick, New Brunswick, NJ, United States, (4)Rutgers University, Earth and Planetary Sciences, New Brunswick, NJ, United States, (5)Rutgers University, Earth & Planetary Sciences, Piscataway, NJ, United States, (6)Rutgers University, Marine & Coastal Sciences, New Brunswick, NJ, United States, (7)Rutgers University New Brunswick, EPS, New Brunswick, NJ, United States
 
Late Middle to Late Miocene Paleoceanography at Rockall Plateau Site 982 (605704)
Oliver McLellan, Rutgers University New Brunswick, Earth and Planetary Sciences, New Brunswick, NJ, United States, Kenneth G Miller, Rutgers University, Earth & Planetary Sciences, Piscataway, NJ, United States, James Wright, Rutgers University New Brunswick, EPS, New Brunswick, NJ, United States, Maria Makarova, Rutgers University New Brunswick, New Brunswick, NJ, United States and Ronan Keating, Rutgers University, Earth and Planetary Sciences, New Brunswick, NJ, United States
 
Environmental Drivers of the Late Neogene Expansion of C4 Ecosystems (607695)
Pratigya J Polissar1, Kevin T Uno2, Samuel R. Phelps2, Allison Karp3, Jake Andrae4, Katherine Freeman3, Francesca A McInerney4 and Peter B deMenocal2, (1)University of California Santa Cruz, Santa Cruz, CA, United States, (2)Lamont-Doherty Earth Observatory, Palisades, NY, United States, (3)Pennsylvania State University Main Campus, Geosciences, University Park, PA, United States, (4)University of Adelaide, Adelaide, SA, Australia
 
Recipes for Miocene Warmth. (612447)
Matt Huber and Ashley Dicks, Purdue University, West Lafayette, IN, United States
 
Middle Miocene continental temperature and precipitation change recorded in North American paleosols (619028)
Katharina Methner, Senckenberg Biodiversity and Climate Research Centre, Frankfurt, Germany, C Page Chamberlain, Stanford University, Stanford, CA, United States, Jens Fiebig, Goethe University, Institute of Geosciences, Frankfurt (Main), Germany and Andreas Mulch, Senckenberg Biodiversity and Climate Research Centre, Frankfurt (Main), Germany
 
Thermal Evolution of the northern North Atlantic during the Early-Middle Miocene from ODP Site 982 Record (632789)
Ronan Keating, Rutgers University, Earth and Planetary Sciences, New Brunswick, NJ, United States, Maria Makarova, Rutgers University New Brunswick, New Brunswick, NJ, United States, Oliver McLellan, Rutgers University New Brunswick, Earth and Planetary Sciences, New Brunswick, NJ, United States, Kenneth G Miller, Rutgers University, Earth & Planetary Sciences, Piscataway, NJ, United States, Richard A Mortlock, Rutgers University, Piscataway, NJ, United States and James Wright, Rutgers University New Brunswick, EPS, New Brunswick, NJ, United States
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