Global warming began in oceans 135 years ago, suggests study

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Christian Science Monitor : A study of temperature recordings from the 1870s suggests that the oceans began warming more than 100 years ago, much earlier than previously believed.

Joseph Castro

April 2, 2012

 

The world's oceans have been warming for more than 100 years, twice as long as previously believed, new research suggests.

 

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Roemmich and his colleagues compared Challenger temperatures with data from the modern-day Argo project, which uses 3,500 free-drifting floats to measure the temperature and salinity, or salt content, of the world's oceans every 10 days. The comparison showed a 1.1-degree Fahrenheit (0.59-degree Celsius) temperature increase at the ocean's surface over the last 135 years, a result corroborated by a large body of sea-surface temperature data that goes back more than 100 years. [The World's Biggest Oceans and Seas]

 

"That is a substantial amount of warming," Roemmich told LiveScience. Ocean warming has been previously linked to glacial melting and mass coral bleaching.

 

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H/T Minnesotans For Global Warming