When impacts of unprecedented heat are expressed not in monetary terms but in numbers of exposed people …
The paper shows that #climatechange has already put ~9% of people (>600 million) outside the ‘human climate niche’ (defined by mean annual temperature ≥29 °C).
By end-of-century (2080–2100), current policies leading to around 2.7 °C global warming could leave one-third (22–39%) of people outside the niche.
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