Across
the oceans, the August 2015 globally-averaged sea surface temperature was
0.78°C (1.40°F) above the 20th century average—the highest temperature for any
month in the 1880–2015 record.NOAA
analysis further
shows that in August 2015, the sea surface on the Northern Hemisphere was
1.02°C (1.84°F) warmer than it was in the 20th century, as illustrated by the
graph above.
As
the image below shows, the August data for sea surface temperature anomalies on
the Northern Hemisphere contain a trendline pointing at a rise of 2°C (3.6°F)
well before the year 2030. In other words, if this trend continues, the
Northern Hemisphere sea surface will be 2°C (3.6°F) warmer in about a dozen
years time from now.
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