rockhill

Has the earth gone thru climate changes before modern man? Scientist tell us it has and there does seem to be plenty of evidence the common man can see and understand. Have we accelerated or adversly affected the enviroment? I believe that we have done so. The decrease in visibility, crud floating in the air and water can not be beneficial. Now how much of the melting ice cap do we blame on "natural changes" and how much on greenhouse gases? That is the tough question that I believe no one can say for certainty. To be safe, we need to do those things required to lessen our foot print on the eco system.
Just one man's opinion to be sure, but open debate and concern is a good thing.