Global warming: Why the skeptics are wrong
John Harte (Energy and Resources Group, University of California, Berkeley)
(June 27, 2006 7:00 PM - 8:00 PM)
I examine the current status of knowledge about global warming and review prevailing myths that surround the subject, including the notion that the uncertainties in our current models provide equal support for the concerned and the complacent. One source of uncertainty stems from the fact that most current climate models do not describe ecological responses to warming, and thus they ignore feedback mechanisms that arise from the coupling of climate and ecosystems. From analysis of past climate change and from ongoing ecosystem-warming experiments and field observations, I argue that climate-ecosystem feedbacks are likely to bring about future warming that is considerably more intense than is currently projected.