Well I voted for the worst case scenario. Clearly manmade activity is having an effect on the enviroment. The big question is how long till something happens and how bad would it be? With 6,302,309,691 (
http://www.census.gov/cgi-bin/ipc/popclockw) of us as of 7/1/03 is it any wonder something is going to change?
Good news, if all the ice in the north & south poles melt plus all the glaciers on earth melt as well. The oceans would only rise about 400 feet. So anywhere on earth 400 and above will be dry. You would be suprised how much land is above 400 feet. But not enough to support 7 or 8 billion humans.:confused: :confused: :confused: