Bombshell study: past El Niño’s ‘may have amplified global climate fluctuations for hundreds of years at a time’

Watts Up With That?

From AUSTRALIAN NATIONAL UNIVERSITY

How El Niño impacts global temperatures

El Niño oscillations in the Pacific Ocean may have amplified global climate fluctuations for hundreds of years at a time

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.

The new data will help scientists build more accurate models of future climate, said member of the research team, Alena Kimbrough, from The Australian National University.

“Our work is a significant piece in the grand puzzle. The tropics…

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