Large parts of Earth could soon become too roasting to live in.
Areas of the planet that are home to more than half of the world’s population may become too hot to inhabit. People in the Americas, Asia and the Middle East could be forced to flee to cooler climes if temperatures continue to rise due to climate change.
And India, Pakistan, eastern China and sub-Saharan Africa could soon suffer countless hours of intolerable heat, researchers in the US said.
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Dr Matthew Huber, a professor of Earth, atmospheric and planetary sciences at Purdue University, Indiana, said: “The worst heat stress will occur in regions that are not wealthy and are expected to experience rapid population growth in the coming decades. This is true despite the fact that these nations generate far fewer greenhouse gas emissions than wealthy nations.
“As a result, billions of poor people will suffer and many could die. But wealthy nations will suffer from this heat as well.”
Boffins found that if temperatures rise beyond 1.5C above pre-industrial levels, vast parts of many poorer nations will no longer be inhabitable.
It comes following the hottest September on record worldwide with an average surface air temperature of 16.38C. Dr Paulo Ceppi, a climate scientist for Imperial College London, told Geographical: "It’s not just the hottest September on record. It’s the hottest by a wide margin. We expect temperatures to continue rising with steadily increasing greenhouse gas concentrations. But it’s striking to see this big jump."
The month's average temperature was 1.75C above the pre-industrial average. Dr Ceppi added: "That doesn’t mean we have definitely passed the 1.5C threshold because that’s based on longer periods, but it means we’re seeing temperatures that are way over the limit that we’re hoping not to exceed."
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