In parts of the United States this month wind chills brought already Arctic temperatures down to minus 39 degrees Celsius. More than 20 people died as a result of the polar vortex.
Meanwhile, in Australia, thermometers soared to a high of 47 degrees in Adelaide. Amid the searing heat, the overuse of air conditioners caused widespread power failures as electrical grids struggled to cope with demand.
Worldwide, extreme weather events are increasing in frequency. Just last year, droughts and...
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