Friends & colleagues, please read Nobel Laureate Paul Krugman's column in the NY Times today, "It's Easy Being Green."
Last June, I gave a decision tree on global warming. The distinguished economist says my numbers are wrong - that it's much cheaper to avert disaster than I had assumed. Skepticism of global warming is like smoking. It's socially unacceptable. We have to fix this earth.
If you want good news on the subject, read up on biochar. It would be cool to merge a simulation of a region's farms with a transportation problem, to see if biochar would do against petroleum, examining requirements and emissions for water, nitrate, and carbon. I bet the farmers would come out ahead from all that transportation saved. But I'm too busy with the water market work to get to it this year.