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Sat Jun 11, 2016, 09:46 PM

How El Niño impacts global temperatures

http://www.anu.edu.au/news/all-news/how-el-ni%C3%B1o-impacts-global-temperatures
[font face=Serif][font size=5]How El Niño impacts global temperatures[/font]

9 June 2016

[font size=3]Scientists have found past El Niño oscillations in the Pacific Ocean may have amplified global climate fluctuations for hundreds of years at a time.

The team uncovered century-scale patterns in Pacific rainfall and temperature, and linked them with global climate changes in the past 2000 years.

For example, northern hemisphere warming and droughts between the years 950 and 1250 corresponded to an El Niño-like state in the Pacific, which switched to a La Niña-like pattern during a cold period between 1350 and 1900.



"Until we can model this lower-frequency behaviour in the tropical Pacific, one can only speculate on how the warming will play out over the next few decades," said lead author Dr Michael Griffiths from William Paterson University, in the United States.

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http://dx.doi.org/10.1038/NCOMMS11719

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