The first two weeks of preseason training are the toughest as players’ bodies acclimatize to running hard in the heat. An exercise scientist explains the risks.

They might be called the "dog days" of summer, but in areas that experience extreme heat, the outdoors are not the best place for your four-legged friends.

Global heating may be making the weather systems behind heatwaves more common in Europe.

With decades of images and data from the same locations, these satellites can show changes over time, including deforestation, changes in waterways and how loss of trees corresponds to urban heat.

They’re crucial for tracking deforestation, pinpointing dangerous heat, and helping people respond to fires, floods and insidious risks that might not be obvious from the ground.

Hotter, drier summers risk making widlfires more like those of southern Europe.

Summer sports camps and pre-season training often have kids running hard in high heat and humidity. The combination can be deadly.

Summer sports camps and pre-season training often have kids running hard in high heat and humidity. The combination can be deadly.

Summer sports camps and August training sessions often have kids running hard in high heat and humidity. The combination can be deadly.

New research on young, healthy humans found the body begins overheating when exposed to temperatures and humidity lower than previously believed.