The Warren Washington Symposium


Climate Sensitivity—Evidence from Models and Observations

James E. Hansen, NASA/GISS, New York, NY

Climate sensitivity to natural and anthropogenic climate forcings is a function of the climate state and time scale. Our understanding of climate sensitivity is improved by combining climate model studies with a broad range of observational data. I will discuss and compare results from a range of climate model types and empirical information from time scales from a few years to the age of Earth. Perturbing climate forcings, such as volcanic eruptions and large scale carbon injections to the atmosphere, provide useful constraints, as does comparative planetology.

Recorded presentation

Session 1, Warren Washington Symposium I
Thursday, 21 January 2010, 8:30 AM-9:45 AM, B203

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