The warning could not be starker. “The science is unequivocal,” wrote the editors of over 200 international health journals in a simultaneously published call to action last month. “A global increase of 1.5°C above the pre-industrial average and the continued loss of biodiversity risk catastrophic harm to health that will be impossible to reverse.”

Preventing such a calamity is a task not only for the politicians who will soon gather in Glasgow for the UN’s COP26 climate change conference, but also for the world’s healthcare providers. It is they who are already having to deal with the immediate effects of climate change on human bodies and minds. But they must also recognise that they, too, have contributed to the problem — because healthcare systems are significant carbon emitters. . .

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