http://www.whitehouse.gov/news/releases/2005/06/20050629-11.html
"See, we got to diversify away from fossil fuels. We're hooked on oil from the Middle East which is a national security problem and an economic security problem, and at the same time, burning fossil fuels is a part of the cause of greenhouse gases."
-Interview of the President by Danish Broadcasting June 29, 2005
I couldn't have said it better myself.