Pacific Current Change Slowed Global Warming

In 1999, a circulation pattern in the Pacific Ocean changed suddenly, which some scientists say made global temperatures plateau and led to the global warming "hiatus."
A new study, published this month in Geophysical Research Letters, lends weight to this theory. Using records stretching back to 1791, the study finds that a switch in the pattern has always been accompanied by changes in temperature in the north and south Pacific Ocean. It also affects the ocean heat content.



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