As the COP26 summit meets over the next couple of weeks in Glasgow, we can all expect to be bombarded with disaster scenarios, replete with stories about our species’ imminent demise. Over the last couple of days, we have had Boris Johnson warning that it is “one minute to midnight” and Prince Charles claiming that this is “literally our last chance saloon”. And of course, Greta Thunberg has already made a few appearances of her own, accusing politicians of “pretending to take our future seriously” and saying that COP26 will “lead us nowhere”.