In less than a century, it could become too hot and humid to live there. If we don't limit global warming to less than 1.5ºC the tropics could become uninhabitable within a few decades. Life in the equatorial region, home to about 43% of the world's population, could also become intolerable.

What year will Earth be uninhabitable?

This is expected to occur between 1.5 and 4.5 billion years from now. A high obliquity would probably result in dramatic changes in the climate and may destroy the planet's habitability.

What temperature is unlivable?

Some areas have already experienced conditions at or near humans' survivability limit of 35°C (95°F). Credit: Map by NOAA Climate.gov, based on data from Radley Horton. The results have important implications. The hotter it is, the more strain our bodies feel, and the more we need to sweat to cool down.