by Judith Curry
Andy Revkin poses a good question . . .
Over at dotearth, in the context of the U.S. presidential debates, Andy Revkin poses the following question:
While persistent and deep uncertainty surrounds the most important potential impacts from and responses to greenhouse-driven global warming, the long-term picture of a profoundly changed Earth is clear. What do you see as the best mix of achievable policies to limit environmental and economic regrets?
This is a very good question to ponder, its at the heart of the climate policy debate. How would you answer this question? For the moment, accept that there is ‘some’ warming that is attributable to CO2 (i.e. lets not debate the fundamental science here, but uncertainty assessments are ok). Please keep your responses on topic.