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Published: July 31st, 2009 12:14 PM
Last Modified: July 31st, 2009 12:29 PM
NPR's 'Morning Edition': With climate change come the possibilities of changing ocean currents, rising sea levels and shrinking polar ice caps. Rear Adm. David Titley, the Navy's chief oceanographer and navigator, recently spent time aboard the Coast Guard cutter Healy in the Arctic Ocean off Alaska, exploring how climate change might affect national security. He says he found the Arctic this summer a rather benign environment. "The temperature of the water was about 39 or 40 degrees. ... The air temperatures were in the 40s to even at one point approached 50 degrees. And, as I told the crew onboard Healy, I've seen actually many times worse conditions off of Southern California or Virginia."
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