I can post a comment 8-)It struck me to say this on the cloud watching blogs" CLOUDS ARE THE PRIMARY GREENHOUSE GAS. THATS RIGHT CO2 IS PRACT^ICALLY IRRELEVANT.
Indeed Doug,Water vapour has a far higher heat capacity than CO2, approximately 40x, AFAIR. Methane (termites and cows) is also very high.You know how I feel about the whole AGW thing!;)