Humans play major role in ocean warming

Cross sections representing temperature changes for 1955 to 2011 for the top 2,300 feet (700 meters) of the Atlantic and Pacific oceans. Each globe represents a 10-year average, with the most recent decade in the foreground. Red represents warming, white no change and blue for cooling with respect to a 1957-1990 average. Data came from the National Oceanographic Data Centre World Ocean Database.Natural fluctuations alone do not explain warming in the upper layers of the planet’s oceans, confirms a new computer modeling study.

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