NASA warming scientist: 'This is the last chance'

June 24, 2008 By SETH BORENSTEIN , AP Science Writer in Earth / Environment
NASA warming scientist: 'This is the last chance'
Jim Hansen, left, a leading researcher on global warming, talks with House Select Energy Independence and Global Warming Committee Chairman Rep. Edward Markey, D-Mass., right, prior to a briefing on global warming on Capitol Hill in Washington, Monday, June 23, 2008. (AP Photo/Susan Walsh)

(AP) -- Exactly 20 years after warning America about global warming, a top NASA scientist said the situation has gotten so bad that the world's only hope is drastic action.

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"NASA warming scientist: 'This is the last chance'" June 24, 2008