So, Al Gore has been challenged to a debate on Global Warming, yet refuses to debate. In fact, there is an apparent "list" of scientists, economists, and professors who would also enjoy questioning Al Gore's methods of research. But again, No, Al Gore will not debate this topic. If he is so sure about global warming and has all this evidence to back him up, why won't he participate in a debate on this topic? Here is a link to the global warming heartland website. Read a few of the articles and see what the real facts are on "Global Warming".