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Sunday, February 5, 2012

Giants of NZ forest predict future weather extremes...

Scientists using the rings on kauri trees to look at climate patterns are tipping global warming to bring more big weather extremes in the coming years.

The Auckland University study, published in the monthly journal Nature Climate Change, identifies that growth rings from the trees in Northland provide an insight into climate variations over centuries.
The El Nino weather pattern, which brings cool southwesterly winds and droughts is linked to wide tree rings as the trees grow rapidly, while La Nina, which brings wetter, warmer conditions is shown in narrow, slower-growing, rings.

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