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Published on Jun 6, 2013
Here's a very stunning interview of Dr. James Hansen by David Letterman in late 2009. Dr. Hansen is one of the foremost American climate scientist and head of NASA's Goddard Institute for 40 years. This interview was on YouTube for years, but was suddenly deleted for some reason. I have restored it to YouTube. Please forward the link widely so that we are reminded of how serious the climate problem is.