Exercising outside in high temps can be a health hazard. Here's how to read your local index, according to a doctor, so you ...

What is the heat index? Learn how humidity makes temperatures feel hotter, why it matters during New York's heat wave and when heat becomes dangerous.

Scorching temperatures, especially combined with high humidity, pose risks particularly for children, older people and those ...

Michigan's heat wave this week will feel even warmer because of high humidity. Here's how the heat index works.

The heat index shows how humidity makes hot days feel hotter, and why direct sun can push dangerous conditions even higher.

As summer temperatures rise, dairy cows are at greater risk for heat stress. Heat-stressed cows suffer from reduced dry ...

Climate and infrastructure challenges mean facilities professionals must work together to improve building performance, Colliers Project's Sarah Maston said at the organization’s conference.

Sometimes you can stay hydrated and still run; other times you should just pack it in.

Humidity is part of the answer. But Britain’s housing, long summer days, and lack of experience with extreme heat also make ...

Houston summer weather is starting earlier and lasting longer. See three charts that explain Texas heat, 100-degree days and rising temperatures.