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Droughts and heatwaves cause 10% drop in annual crop harvests

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A farmer walks in a field on the outskirts of Luoyang, central China’s Henan province. © Carlf Zhang/Reuters/Corbis.
Over the past five decades, hundreds of droughts and heatwaves have struck countries across the world. A new study finds that these events caused an average annual drop in national crop production of around 10%.

January 7, 2016 — The cumulative global losses of these hot and dry extremes amount to 3bn tonnes of cereal crops, the study says – equivalent to three times the global maize harvest last year.

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