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Climate Change: First, the bad news, then the good.
view David Wasdell's Lecture (44:24, 36.8 MB QuickTime movie file) 7.30pm, April 18th, 2008 Emmett Lecture Theatre
Speakers: David Wasdell, Director of the Meridian Programme, a world-renowned expert in the dynamics of climate change, delivered the bad news: Feedback Dynamics and the Acceleration of Climate Change. He argued that because many feedback mechanisms have been ignored, the pace at which climate change is now happening has taken politicians, policymakers and even the UN by surprise. Greenhouse gas concentrations in the atmosphere have already exceeded a safe limit. Consequently not only will every tonne of CO2 emitted from now on have to be recovered and sequestered before its full heating effect has developed but some past emissions will have to be recovered too. Peter Read, Senior Lecturer in the Department of Applied and International Economics at Massey University in New Zealand, delivered the good news: Addressing Abrupt Climate Change. Plants and soil lock up huge amounts of carbon. Read contends that it would take only a relatively small increase in the levels of that stored carbon to return atmospheric concentrations of CO2 to safe limits. This would also improve soil fertility and raise incomes for millions of farmers. Note added Dec 2009: We were saddened to learn of the recent death of Peter Read. You can read his obituary here. -------------------------- This lecture was dedicated to the memory of Will Howard. Will was Co-ordinator of Cap and Share in Britain (see www.capandshare.org). He worked in the 1980s for the Campaign for Nuclear Disarmament, then as National Coordinator of the broad-based UK organisation Nuclear FREEZE. His new-media company produced The Carbon Gym for the Centre for Alternative Technology in Wales. Feasta wishes to join with his wife Lyn and his sons in honouring his work and celebrating his life by dedicating this lecture to him. Will Howard obituary
-------------------------- David Wasdell gave a similar presentation at the 2008 Tallberg Forum which is available to download from the Feasta site in both high and low quality. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||