Flash drought is a new phenomenon with increasing prominence due to global warming. Drought develops rapidly without sufficient early warning, and has stricken the world with severe impacts during recent years, such as the droughts over central USA in 2012 that caused billions of dollars of economic losses; southern China in 2013 that affected 2 million hectares of crops in Guizhou and Hunan provinces alone; and those in southern Africa in 2015, and northern USA in 2017. There is hence an urgent need to investigate flash drought risk and its underlying drivers in a changing climate.
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Source: Phys.org