Re: [geo] GHG's: Cost- Effective Temperature Potentials

2012-02-02 Thread John Nissen
Hi Michael, I just picked up this email, and am interested in GWP from the PSCs (polar stratospheric clouds). Four questions: 1. What is the mean radiative forcing effect and mean lifetime of a cloud to produce a GWP of 310? What is the total radiative forcing of such clouds and the total

Re: [geo] GHG's: Cost- Effective Temperature Potentials

2012-01-26 Thread Michael Hayes
My two cents, I think opening up the full spectrum of GHGs to consideration is highly important. Stratospheric moisture is *the* principle GHG, yet little conceptual work has been put forward on this site (or any other) concerning the direct removal of this primary GHG. Just to be able to reduce