Did you forget that the Bush Administration has a good reason to deny the global warming exists?

Global Warming may exist, but the cause of it is not proven, therefore making it unknown. The earth naturally warms and cools. Do you use electricity? (yes, you do because you submitted your comment on a computer) Do you have a car? Do you buy food from a supermarket? How do you keep warm in the winter? Do not be a hypocrite. I do not know about global warming being a scam to make money; however, I do know it is hurting our American economy.