TALK at GNS on Greenhouse Futures
Talk at GNS Science:
Greenhouse Futures: the role of geology in validating greenhouse climate predictions
Malahoff Theatre, GNS Science, 1 Fairway Drive Avalon, 16.30 to 18.00, Wednesday 20th February
Gerald R. Dickens, Professor of Earth Science, Rice University, Texas
Matthew Huber, Professor of Earth and Atmospheric Sciences and Director of the Climate Change Research Center, Purdue University, Indiana
Christopher J. Hollis, Programme Leader, Global Change Through Time, GNS Science
To be followed by drinks and snacks in the GNS Cafetaria
Within the next 50 years, the planet will experience greenhouse gas levels that have not existed for the past 5 million years. The geological record provides valuable insight into Earth system processes of the past and provides the only means to evaluate model-based climate predictions for our future greenhouse world . Since 1998, a team of scientists at GNS Science, in collaboration with international and local researchers, have undertaken research on the geological record of greenhouse climate states with particular focus on the regional impacts of greenhouse gas-induced global warming. This seminar presents an overview of this research, highlights the relevance for understanding the impacts of greenhouse-gas induced global change and identifies the key challenges for future research.
Jerry Dickens is a paleoceanographer and geochemist with a particular interest in carbon cycle dynamics under the greenhouse climate conditions of the early Cenozoic. Jerry championed the hypothesis that a massive release of subseafloor methane may be the cause of pulses of extreme global warming in the Eocene (55-50 million years ago). His collaboration with GNS researchers has centred on the search and characterisation of these climate events in the spectacular record of SW Pacific ocean sedimentation preserved in the limestones of southeastern Marlborough and Kaikoura.
Matt Huber is a paleoclimate modeler and climate dynamicist. His research is focused the mechanisms that govern climate, the different forms that climates can take on Earth, and the relationship between climate change and life. His collaboration with GNS researchers has centred on understanding the relative roles of ocean circulation and greenhouse gas levels on SW Pacific climate and understanding the processes behind polar amplication of temperatures during past episodes of global warming.
Chris Hollis is a paleontologist and paleoclimate scientist who specialises in the application of paleontological and geochemical proxies to reconstruct past climate and environments of the early Cenozoic (66-30 million years ago). He has led GNS research into past greenhouse climates since 1998 and has been principal investigator on two previous and one current Marsden Fund project exploring biotic and climatic events of the early Cenozoic.