Re: [geo] Re: White roof snag

2011-11-04 Thread Ken Caldeira
I should keep my mouth shut until I go through this paper carefully, but I am highly skeptical of this reported result. Even if white roofs cause local increases in vertical stability, I would be very skeptical if increases in surface albedo were to cause decreases in planetary albedo, except in

RE: [geo] Re: White roof snag

2011-11-04 Thread Rau, Greg
Chris, Re my original snow question, you say: It is not a corallary to the Jacobson result that putting snow beneath dark aerosols will warm climate. Snow, like roofs, is bright, so it is understandable why one might think this. However snow, unlike roofs, melts when you warm the overlying

Re: [geo] Re: White roof snag

2011-11-03 Thread Andrew Lockley
Increased column stability may affect hydrological cycle and thus thermohaline circulation. This could be problematic and modelling seems wise A On Nov 3, 2011 4:15 PM, O Morton omeconom...@gmail.com wrote: Stephen (or John, or Phil, or anyone else) have any of your modellings of cloud