Many millions of people in the tropics could be exposed to dangerous heat for half the year by 2100 even if humanity manages to meet climate goals, researchers warn
Researchers fear billions of people will be overexposed to extremely dangerous temperatures"in a way that we just fundamentally haven't seen".
In the most likely scenario, the world would miss those targets — potentially subjecting people across the tropics to harmful temperatures most days of each typical year by the end of the century, according to the study. Most climate projections predict temperature increases under different policy scenarios, but do not say which of those pathways is more likely.
They found that many people in tropical regions could face dangerous heat levels for half the year by the end of the century, even if the world limits temperature rises to the Paris climate deal goal of less than two degrees Celsius above preindustrial levels.As the climate is changing, which animals will adjust and survive?The researchers used a heat index that puts "dangerous" levels at 39.
"That's pretty scary," he told AFP, adding that even walking outside would be dangerous under those conditions. They estimated that there is only a 0.1 percent chance of limiting global average warming to 1.5C by 2100, projecting that the world is likely to reach 1.8C by 2050.
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