FILE - In this Friday, Dec. 28, 2012 file photo, the sun sets behind the Christ the Redeemer statue and the Corcovado mountain in Rio de Janeiro, Brazil, two days after the city

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FILE - In this Friday, Dec. 28, 2012 file photo, the sun sets behind the Christ the Redeemer statue and the Corcovado mountain in Rio de Janeiro, Brazil, two days after the city recorded its hottest day since 1915 at 43 degrees Celsius (109.7 degrees Fahrenheit). New weather data shows that the world's average temperature in 2012 barely slipped into the top 10 hottest years on record, despite the U.S. smashing heat marks. The National Oceanic and Atmospheric Administration says last year's world average temperature was 58 degrees Fahrenheit (14.5 degrees Celsius) - a full degree above the 20th century average of 57 F (13.9 C). NASA, which measures temperatures differently, ranks 2012 as ninth warmest. Both agencies announced the data Tuesday, Jan. 15, 2013. (AP Photo/Felipe Dana) less 

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Associated Press
Wed, Jan 16, 2013 2:35 PM EST