Actually, skippy_achu, the claim that "humans caused climate change"and that the prescribed policy proposals could reverse climate change are the most debated issues at hand. No one is denying the reality that climate fluctuates, people, including renowned scientists are skeptical as to the claims that humans have such a profound impact on the climate. This skepticism is amplified by the reality that dire claims of "global flooding" and "disappearance of ice caps" have yet to materialize in spite of decades of prognostication. Of course, you will probably revert to the claim that " 97% of scientists agree that climate change is man-made", which of course you you don't realize that you are now forsaking scientific analysis for the argument of popularity. But I understand your confusion, because you probably believe Bill Nye is actually a "science guy".