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)

Associated Press
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)
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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