A great piece by that title over on TCSDaily from NASA’s former senior scientist for climate studies, Dr. Roy Spencer. Here’s a link to a page with his bio and some very good articles by him on this topic. Yes, he’s an expert and yes, he disagrees with Al’s theory.

Some excerpts from his “Questions”:

” — Why did you make it look like hurricanes, tornadoes, wildfires, floods, droughts, and ice calving off of glaciers and falling into the ocean, are only recent phenomena associated with global warming? You surely know that hurricane experts have been warning congress for many years that the natural cycle in hurricanes would return some day, and that our built-up coastlines were ripe for a disaster (like Katrina, which you highlighted in the movie).

– Why did you make it sound like all scientists agree that climate change is manmade and not natural?

– Your presentation showing the past 650,000 years of atmospheric temperature and carbon dioxide reconstructions from ice cores was very effective. But I assume you know that some scientists view the CO2 increases as the result of, rather than the cause of, past temperature increases.

– There seems to be a lot of recent concern that more polar bears are drowning these days because of disappearing sea ice. I assume you know that polar bears have always migrated to land in late summer when sea ice naturally melts back, and then return to the ice when it re-freezes. Also, if this was really happening, why did the movie have to use a computer generated animation of the poor polar bear swimming around looking for ice? Haven’t there been any actual observations of this happening?

– Why did you make it sound like simply signing on to the Kyoto Protocol to reduce our greenhouse gas emissions would be such a big step forward, when we already know it will have no measurable effect on global temperatures anyway?”

Good questions, all. Hope Dr. Spencer isn’t waiting by his mailbox for a reply from Al anytime soon….