The devastating wave of wildfires that has reduced thousands of Hollywood homes to ashes could not have afflicted the US at a more telling moment. Figures released last week revealed that for the first time the world overshot the 1.5C limit in global temperature rises that had been set as a desired upper figure by the Paris climate accord of 2015.

It is clear that the floods that engulfed Valencia last year, along with the typhoons that ripped through the Philippines and the drought that

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