The debate at Copenhagen just begun. Hopefully, we will have some clarity and Truth about the whole gamut of Global Warming and whether we the humans are guilty of it.
So far, Scientists on both sides of the argument defend themselves. But one must note that both sides are making a political statement as Scientific data does not conclude either way. These scientists tend to take a position and go back to data to find out data sets that prove their points.
Having said that, anybody can say anything about Climate Change, and it is most likely that he/she is right and wrong at the same time, even based on the scientific data per se.
Hope we get some clarity and all scientific community come to an agreement. May be, I should have said, I wish.