Global warming will expose 2 billion people to dangerous heat by end of century

Some 2 billion people will be exposed to dangerous heat conditions if global warming reaches 2.7 degrees. Two countries with the greatest population exposed to this level of global warming will be India and Nigeria. If global warming is reduced to 2.7 degrees as against 1.5 degrees, it could reduce the population exposed to unprecedented heat.

Some of the consequences anticipated from global warming include:

  • For every 0.1 degree of warming above present levels, about 140 million more people will be exposed to dangerous heat
  • About 600 million people, or 9 per cent of the current world population, are already exposed to dangerous heat conditions
  • If global warming reaches 3.6 or even 4.4 degrees, half of the world’s population could be left outside the climate niche

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