Decomposition of the driving factor contribution to total heatwave-attributable deaths in China. (IMAGE)
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The increase in attributable deaths to heatwaves in China was primarily due to increased heatwave exposure, followed by population growth, population aging and the mounting baseline mortality. Notably, population aging has played an increasingly important role in attributable deaths over time, increased from 10.6% in the period between 1980s and 1990s to 15.8% afterward, reaching as high as 20.8% in the period between 2000s and 2010s. a, Decomposition of the contribution of driving factors in seven regions (left) and for the whole nation (right) from 1980s to 1990s. b, Decomposition of the contribution of driving factors in seven regions (left) and for the whole nation (right) from 1990s to 2000s. c, Decomposition of the contribution of driving factors in seven regions (left) and for the whole nation (right) from 2000s to 2010s. AD, attributable deaths to heatwaves. The Map NO. is GS(2019)1673. Art by Huiqi Chen.
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