A new paper published in Nature Sustainability examines the ‘human climate niche’ – the temperature range in which the vast majority of people live – and the impact climate change will have on dragging people outside it.
It suggests that current climate policies – which the authors say are estimated to produce an average temperature rise of 2.7°C by 2100 – will leave more than 20% of humanity exposed to dangerously hot temperatures. But they also argue that limiting warming to 1.5°C, in line with the Paris agreement, would leave just 5% outside the niche by 2100.
Journalists came to this online briefing to hear three of the authors discuss their conclusions.
Prof Tim Lenton, Founding Director of the Global Systems Institute at the University of Exeter
Prof Marten Scheffer, Distinguished Professor at Wageningen University, Netherlands
This Briefing was accompanied by an SMC Roundup of Comments.