New Zealand: Record-hot summer a taste of climate change

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By Jamie Morton

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A paper just published in scientific journal Environmental Research Letters found last summer - which broke an 84-year-old record for warmth - could also offer a good analogue for possible mean conditions in the late 21st century.

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[Professor Jim Salinger, University of Otago] described the effects as "dramatic", with a record early snow melt, major disruption of marine ecosystems and very early maturation of wine grapes.

For Marlborough Sauvignon Blanc wine grapes, the 2018 season proved to be amongst the warmest since 1947, with véraison and maturation dates advanced by 13 and 17 days respectively.

Salinger put the warmth down to a combination of factors, including a persistently positive Southern Annular Mode which brought fewer cold fronts, a La Nina climate system, and background global warming.

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Country and region New Zealand
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