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Posted: 12/20/2012 4:43:39 PM EST
FILE - In this Aug. 25, 2012 file photo, a man stands on a post with a stop sign as waves push over a seawall during the passage of Tropical Storm Isaac in Baracoa, Cuba. In 2012 many of the warnings scientists have made about global warming went from dry studies in scientific journals to real-life experience. (AP Photo/Ramon Espinosa, File)
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Posted: 12/20/2012 4:43:39 PM EST
FILE - In this Aug. 25, 2012 file photo, a man stands on a post with a stop sign as waves push over a seawall during the passage of Tropical Storm Isaac in Baracoa, Cuba. In 2012 many of the warnings scientists have made about global warming went from dry studies in scientific journals to real-life experience. (AP Photo/Ramon Espinosa, File)
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Posted: 12/20/2012 4:43:39 PM EST
FILE - In this Dec. 4, 2012 file photo, oxen skulls brought by Brazilian farmers to represent animals killed by this year's drought lay at the feet of security agents outside Planalto presidential palace in Brasilia, Brazil. In 2012 many of the warnings scientists have made about global warming went from dry studies in scientific journals to real-life experience. (AP Photo/Eraldo Peres, File)
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Posted: 12/20/2012 4:43:39 PM EST
FILE - In this Dec. 4, 2012 file photo, oxen skulls brought by Brazilian farmers to represent animals killed by this year's drought lay at the feet of security agents outside Planalto presidential palace in Brasilia, Brazil. In 2012 many of the warnings scientists have made about global warming went from dry studies in scientific journals to real-life experience. (AP Photo/Eraldo Peres, File)
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Posted: 12/20/2012 4:43:39 PM EST
FILE - In this April 15, 2012 file photo, a woman is framed in the doorway of a damaged home in Thurman, Iowa, after it was destroyed by a tornado the night before. In 2012 many of the warnings scientists have made about global warming went from dry studies in scientific journals to real-life video played before our eyes. (AP Photo/Nati Harnik, File)
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Posted: 12/20/2012 4:43:39 PM EST
FILE - In this April 15, 2012 file photo, a woman is framed in the doorway of a damaged home in Thurman, Iowa, after it was destroyed by a tornado the night before. In 2012 many of the warnings scientists have made about global warming went from dry studies in scientific journals to real-life video played before our eyes. (AP Photo/Nati Harnik, File)
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Posted: 12/20/2012 4:43:39 PM EST
FILE - In this July 5, 2012 file photo, a dock extends into a dry cove at Morse Reservoir in Noblesville, Ind., as oppressive heat and drought conditions stifle the middle of the United States. In 2012 many of the warnings scientists have made about global warming went from dry studies in scientific journals to real-life experience. One example: July was the hottest month in record-keeping U.S. history. (AP Photo/Michael Conroy, File)
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Posted: 12/20/2012 4:43:39 PM EST
FILE - In this July 5, 2012 file photo, a dock extends into a dry cove at Morse Reservoir in Noblesville, Ind., as oppressive heat and drought conditions stifle the middle of the United States. In 2012 many of the warnings scientists have made about global warming went from dry studies in scientific journals to real-life experience. One example: July was the hottest month in record-keeping U.S. history. (AP Photo/Michael Conroy, File)
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Posted: 12/14/2012 9:53:39 AM EST
FILE - In this Wednesday, Aug. 1, 2012 file photo, cattle walk in a dusty pasture in rural Parker County near Springtown, Texas. Nearly 4 out of 5 Americans now think temperatures are rising and that global warming will be a serious problem for the United States if nothing is done about it, a new Associated Press-GfK poll finds. Belief and worry about climate change are inching up among Americans in general, but concern is growing faster among people who don't often trust scientists on the environment. In follow-up interviews, some of those doubters said they believe their own eyes as they've watched thermometers rise, New York City subway tunnels flood, polar ice melt and Midwestern farm fields dry up. (AP Photo/LM Otero, File)
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Posted: 12/14/2012 9:53:39 AM EST
FILE - In this Wednesday, Aug. 1, 2012 file photo, cattle walk in a dusty pasture in rural Parker County near Springtown, Texas. Nearly 4 out of 5 Americans now think temperatures are rising and that global warming will be a serious problem for the United States if nothing is done about it, a new Associated Press-GfK poll finds. Belief and worry about climate change are inching up among Americans in general, but concern is growing faster among people who don't often trust scientists on the environment. In follow-up interviews, some of those doubters said they believe their own eyes as they've watched thermometers rise, New York City subway tunnels flood, polar ice melt and Midwestern farm fields dry up. (AP Photo/LM Otero, File)
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Posted: 12/14/2012 9:53:39 AM EST
FILE - In this Wednesday, Aug. 8, 2012 file photo, a dry corn field receives some rain from a passing thunderstorm near Blair, Neb. Nearly 4 out of 5 Americans now think temperatures are rising and that global warming will be a serious problem for the United States if nothing is done about it, a new Associated Press-GfK poll finds. Belief and worry about climate change are inching up among Americans in general, but concern is growing faster among people who don't often trust scientists on the environment. In follow-up interviews, some of those doubters said they believe their own eyes as they've watched thermometers rise, New York City subway tunnels flood, polar ice melt and Midwestern farm fields dry up. (AP Photo/Nati Harnik, File)
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Posted: 12/14/2012 9:53:39 AM EST
FILE - In this Wednesday, Aug. 8, 2012 file photo, a dry corn field receives some rain from a passing thunderstorm near Blair, Neb. Nearly 4 out of 5 Americans now think temperatures are rising and that global warming will be a serious problem for the United States if nothing is done about it, a new Associated Press-GfK poll finds. Belief and worry about climate change are inching up among Americans in general, but concern is growing faster among people who don't often trust scientists on the environment. In follow-up interviews, some of those doubters said they believe their own eyes as they've watched thermometers rise, New York City subway tunnels flood, polar ice melt and Midwestern farm fields dry up. (AP Photo/Nati Harnik, File)
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Posted: 12/14/2012 9:53:39 AM EST
FILE - In this Oct. 30 2012 file photo provided by the Metropolitan Transportation Authority, the South Ferry subway station in New York City is filled with seawater and debris from Superstorm Sandy. Nearly 4 out of 5 Americans now think temperatures are rising and that global warming will be a serious problem for the United States if nothing is done about it, a new Associated Press-GfK poll finds. Belief and worry about climate change are inching up among Americans in general, but concern is growing faster among people who don't often trust scientists on the environment. In follow-up interviews, some of those doubters said they believe their own eyes as they've watched thermometers rise, New York City subway tunnels flood, polar ice melt and Midwestern farm fields dry up. (AP Photo/ Metropolitan Transportation Authority, File)
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Posted: 12/14/2012 9:53:39 AM EST
FILE - In this Oct. 30 2012 file photo provided by the Metropolitan Transportation Authority, the South Ferry subway station in New York City is filled with seawater and debris from Superstorm Sandy. Nearly 4 out of 5 Americans now think temperatures are rising and that global warming will be a serious problem for the United States if nothing is done about it, a new Associated Press-GfK poll finds. Belief and worry about climate change are inching up among Americans in general, but concern is growing faster among people who don't often trust scientists on the environment. In follow-up interviews, some of those doubters said they believe their own eyes as they've watched thermometers rise, New York City subway tunnels flood, polar ice melt and Midwestern farm fields dry up. (AP Photo/ Metropolitan Transportation Authority, File)
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Posted: 12/14/2012 9:53:39 AM EST
FILE - In this July 26, 2011 file photo, a Greenlandic Inuit hunter and fisherman steers his boat past a melting iceberg, along a fjord leading away from the edge of the Greenland ice sheet, near Nuuk, Greenland. Nearly 4 out of 5 Americans now think temperatures are rising and that global warming will be a serious problem for the United States if nothing is done about it, a new Associated Press-GfK poll finds. Belief and worry about climate change are inching up among Americans in general, but concern is growing faster among people who don't often trust scientists on the environment. In follow-up interviews, some of those doubters said they believe their own eyes as they've watched thermometers rise, New York City subway tunnels flood, polar ice melt and Midwestern farm fields dry up. (AP Photo/Brennan Linsley, File)
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Posted: 12/14/2012 9:53:39 AM EST
FILE - In this July 26, 2011 file photo, a Greenlandic Inuit hunter and fisherman steers his boat past a melting iceberg, along a fjord leading away from the edge of the Greenland ice sheet, near Nuuk, Greenland. Nearly 4 out of 5 Americans now think temperatures are rising and that global warming will be a serious problem for the United States if nothing is done about it, a new Associated Press-GfK poll finds. Belief and worry about climate change are inching up among Americans in general, but concern is growing faster among people who don't often trust scientists on the environment. In follow-up interviews, some of those doubters said they believe their own eyes as they've watched thermometers rise, New York City subway tunnels flood, polar ice melt and Midwestern farm fields dry up. (AP Photo/Brennan Linsley, File)
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Posted: 12/7/2012 11:23:25 AM EST
Local and international activists march inside a conference center under a giant statue of a spider to demand urgent action to address climate change at the U.N. climate talks in Doha, Qatar, Friday, Dec. 7, 2012. A dispute over money clouded U.N. climate talks Friday, as rich and poor countries sparred over funds meant to help the developing world cover the rising costs of mitigating global warming and adapting to it. (AP Photo/Osama Faisal)
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Posted: 12/7/2012 11:23:25 AM EST
Local and international activists march inside a conference center under a giant statue of a spider to demand urgent action to address climate change at the U.N. climate talks in Doha, Qatar, Friday, Dec. 7, 2012. A dispute over money clouded U.N. climate talks Friday, as rich and poor countries sparred over funds meant to help the developing world cover the rising costs of mitigating global warming and adapting to it. (AP Photo/Osama Faisal)
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Posted: 12/7/2012 11:23:25 AM EST
Local and international activists march inside a conferences center to demand urgent action to address climate change at the U.N. climate talks in Doha, Qatar, Friday, Dec.7, 2012. A dispute over money clouded U.N. climate talks Friday, as rich and poor countries sparred over funds meant to help the developing world cover the rising costs of mitigating global warming and adapting to it. (AP Photo/Osama Faisal)
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Posted: 12/7/2012 11:23:25 AM EST
Local and international activists march inside a conferences center to demand urgent action to address climate change at the U.N. climate talks in Doha, Qatar, Friday, Dec.7, 2012. A dispute over money clouded U.N. climate talks Friday, as rich and poor countries sparred over funds meant to help the developing world cover the rising costs of mitigating global warming and adapting to it. (AP Photo/Osama Faisal)
