Researcher predicts cooler climate in Northern Hemisphere from 2015

June 30, 2013

THE ASAHI SHIMBUN

A Japanese scientist who analyzed ocean temperatures stretching back more than five decades has predicted that the climate in the Northern Hemisphere may enter a cooling period around 2015.

Mototaka Nakamura, a senior scientist at the Japan Agency for Marine-Earth Science and Technology, analyzed surface temperatures of the Greenland Sea from 1957 to the present and how they affect climate change.

He said Greenland Sea temperatures could serve as a leading indicator of cooling and warming cycles in North Atlantic waters, which are believed to alternate on about 70-year cycles.

He added that the waters in the Greenland Sea appear to be near the tail end of a warming cycle.

The climate in the Northern Hemisphere had cooled from the 1940s to the 1970s, but began a warming trend in the 1980s.

Nakamura said when predicting climate change, the effects of global warming caused by man-made greenhouse gases also need to be taken into consideration.

His findings were to be published in a U.S. science journal on June 28.

THE ASAHI SHIMBUN
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Glaciers in Greenland are believed to be shrinking due to global climate change. (Asahi Shimbun file photo)

Glaciers in Greenland are believed to be shrinking due to global climate change. (Asahi Shimbun file photo)

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  • Glaciers in Greenland are believed to be shrinking due to global climate change. (Asahi Shimbun file photo)

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