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Posted 1/30/09

From David Wasdell. Director of the Meridian Programme, Sat 1/24/2009
www.meridian.org.uk

Dear Ed,
 
Powerful stuff - keep up the pressure!
 
Have completed a major revision of my work on Radiative Forcing, Climate Sensivity and Boundary Conditions of Runaway Climate Change.  The latest edition is attached.  It includes most recent evaluation of strong water vapour feedback and a new section on the Boundary Conditions of Runaway Climate Change.  Conclusions are presented in the Executive Summary. You will see that I am now certain we have passed the threshold of runaway behaviour in the climate system with only a narrow window left to restabilise it.  You will also see the conclusion that attempting to maintain a concentration level of 440 ppm of CO2 equivalent does not lead to an eventual equilibrium of 2 degrees above pre-industrial temperature, or at any other level!  The threshold of runaway behaviour is already activated at this concentration.
 
The current economic crisis should be seen as the canary in the coalmine of climate dynamics.  The tragedy is that all investment is geared to find ways to resuscitate dead canaries rather than paying attention to the iminent danger at the coalface!
 
Keep up the good work,
 
David

Radiative Forcing, Climate Sensitivity & Boundary Conditions of Runaway Climate Change

http://www.crisis-forum.org.uk/events/Workshop1_presentations/wasdell_tallberg.php