Thu, Jan 3, 2013 -- 8:00 PM
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James Hansen 'Storms of My Grandchildren' -- NASA climatologist James Hansen has grown increasingly concerned about the risks of climatic tipping points which could bring catastrophic consequences. His recent research identifies human fingerprints on specific instances of extreme weather such as Superstorm Sandy, putting him out in front of many of his peers. In 1989, Dr. Hansen was the first person to testify before Congress about global warming. Currently the world's preeminent climate scientist, James Hansen is head of the NASA Goddard Institute for Space Studies, adjunct professor at Columbia University's Earth Institute and author of "Storms of My Grandchildren."