i also think it is important to remember that man is a part of nature too.
What happens in nature to deer when they over populate an area? Sickness, disease, starvation. Solution is to hunt them and control there numbers. In todays world we have vaccines, antibiotics and, genetically grown foods. All this stuff I'm sure nature never intended on us to have. We for the most part broke almost every safeguard this planet had in terms of natural population control. Now we worry about bird flu mutating to the point were human to human transfer could take place.

If scientists can make a timetable with the ice of our climate history. Ice thats been through several ice ages in its past, is now rapidly melting, should be a sign something isn't right. I agree with these people on global warming because its better to act late on the issue then not act at all.