We've had a lot of debates on this in the political section. There is a real debate still occuring among scientists and climatologists as if man made CO2 is directly causing global warming (and if our detection methods of climate patterns are truely accurate). The data does not all agree although more does point to a slow warming trend over time (with fluctuations mainly from the sun). Unfortunately, this subject has been highly politicized and groups doing research funded by global warming advocates. Even worse is that some of the data was thrown out because it didn't fit the model.
Al Gore was fine when he was bringing attention to the topic but then went radical.
It's wonderful to preserve our environment, we must, but global warming is certainly not the immediate crisis some have made it out to be. It became almost cult-like. More scientists have come forward to question the conclusions of some of the main researchers. The hockey-stick model (which shows significant warming in the last century) is under a lot of scrutiny.
In fact, the last 15yrs of data shows a cooling period.
