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The most at-risk regions in the world for high-impact heatwaves

Heatwaves are becoming more frequent under climate change and can lead to
thousands of excess deaths. Adaptation to extreme weather events often
occurs in response to an event, with communities learning fast following
unexpectedly impactful events.

Using extreme value statistics, here we show
where regional temperature records are statistically likely to be exceeded,
and therefore communities might be more at-risk. In 31% of regions
examined, the observed daily maximum temperature record is exceptional.
Climate models suggest that similar behaviour can occur in any region.

In some regions, such as Afghanistan and parts of Central America, this is a
particular problem – not only have they the potential for far more extreme
heatwaves than experienced, but their population is growing and
increasingly exposed because of limited healthcare and energy resources. We
urge policy makers in vulnerable regions to consider if heat action plans
are sufficient for what might come.

Nature Communications 25th April 2023

https://www.nature.com/articles/s41467-023-37554-1

April 27, 2023 - Posted by Christina Macpherson | 2 WORLD, climate change