Except...The US absorbs more CO2 than it puts out (see previous /. post) Until recently, India produced more CO2 than the US - slash-and-burn agriculture - And Indonesia and many other countries - are contributing a lot of CO2 the same way. More telling are the high level noctilucent clouds coming down from Canada earlier, and staying longer. High level clouds let sunlight in and reflect heat back. Methane (a much worse greenhouse gas than CO2) contributes to noctilucent clouds - cosmic rays convert much of it to water vapor. One source of methane usually not mentioned in the press is methyl hydrate found on continental shelves. Two major eruptions of methane occured off the north coast of Norware at the end of the last ice age. Three major eruptions are reported as having occured 100,000 years ago - with a substantial increase in earths temperatire.