The Polar Bear Debate: Lots of Smoke, But Not Much Heat
Posted July 6, 2009 in Saving Wildlife and Wild Places, Solving Global Warming
Over at environment360, Ed Struzik has an excellent roundup of the very thin evidence behind the arguments of those who doubt the impact that climate change is having on the polar bear.
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Dr. James Singmaster — Jul 6 2009 07:42 PM
Just for record, ice melting out from under polar bears' feet may not have much connection to climate change according to a recent report. In SCIENCE, April 17, pg 323, 2009, a brief note indicates that a study showed that 75% of the melting of Arctic ice was due to soot that absorbed solar radiation instead of allowing the radiation to be reflected back to space by the ice. So we may need to be calling for much more action on the soot emissions from coal and diesel fuel burning. Controls on such emissions do not get much attention in ACES. Dr. J. Singmaster