Boris
2009-05-06 03:10:29
“Even without any special findings, there’s the simple fact that we’ve seen less warming since the 1800s than we should have seen with *NO* positive feedback.”
This is wrong for a variety of reasons:
1. we’ve seen a 0.7 deg C rise and CO2 has grown by 40%. No feedbacks gives 1.1C for a doubling of CO2.
2. Sulphate aerosols have very likely offset some of the CO2 warming.
3. We are not at equilibrium yet. Even if no more CO2 were added, the excess heat in the oceans will warm the surface by about another 0.5C.
