As the wheels wobbled and then fell from the Biden campaign last month, a palpable sense of dread took hold among the legions of climate scientists, analysts and activists around the world.

Democratic presidential nominee Kamala Harris and her running mate, Minnesota Governor Tim Walz, arrive at a campaign rally in Philadelphia.Credit: AP

The ageing president might have failed to hold the confidence of the Democratic Party as it barrelled towards an election, but his administration had won acclaim for........

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