Lack of ocean heat puzzles Nasa hunt for warming 'hiatus'

October 7, 2014 12:28 AM

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WASHINGTON (AFP) - The deep ocean may not be hiding heat after all, raising new questions about why global warming appears to have slowed in recent years, said the US space agency on Monday.

Scientists have noticed that while greenhouse gases have continued to mount in the first part of the 21st century, global average surface air temperatures have stopped rising along with them, said Nasa. Some studies have suggested that heat is being absorbed temporarily by the deep seas, and that th...

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