Deserts cover more than one-fifth of the Earth's land area, and they are found on every continent. A place that receives less than 10 inches (25 centimeters) of rain per year is considered a desert.

The new area will be equivalent to the size of the ... For older adults who are more vulnerable to heat stress, 20 percent of Earth’s land surface crossed this threshold. If higher warming ...

Between 1994 and 2023, about 2% of the planet’s land area breached this threshold for adults under 60. For older adults, more than 20% of the Earth’s surface crossed this line. But as ...

As Earth continues to warm, more and more of the planet is becoming dry. A 2024 UN report found that in the last three ...