Walter Cunningham

Another viewpoint. The earth is warming, but it's not man-made.

Of great interest to me is comment #78 by 'drm'. It starts off:

All this emphasis on individuals and their credentials and motivations, whether Cunningham or Al Gore or James Hansen, gets us too focused on narrow issues. The scientific academies take in far more scientists and consideration.

It goes on to make a useful point. This is kind of the conclusion I've come to. While there is further analysis from commenters from both sides, #78 represents more of a meta-view that is perhaps more appropriate for non-scientists.