03/28/2008 02:43 am ET Updated May 25, 2011

Senators McCain, Graham, Collins, Clinton Urge Congress To Act Now On Global Warming...

Anyone doubting the effects of human activity on global climate change should talk to the people it affects in Alaska and the Yukon, U.S. Sen. John McCain said Wednesday.

Fresh from a trip to Barrow, America's northernmost city, McCain said anecdotes from Alaskans and residents of the Yukon Territory confirm scientific evidence of global warming.

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