Hales, a Galapagos tortoise cools down as animal supervisor Basili Petropoulos (not pictured) sprays him with water to help ...

British health officials are warning people across the country to take precautions when out in the sun as the U.K. bakes under its first heat wave of the year.Temperatures are expected to peak at 34 ...

Discover how dangerous heat waves are secretly triggering deadly meningitis outbreaks worldwide. Protect yourself from this ...

After surging to Category 4 in less than a day, Erick hit Mexico as a Category 3 hurricane. The NHC is tracking 4 waves, ...

In Tswalu Kalahari Reserve, South Africa’s largest private reserve ... Without climate change, the 2015-16 heat wave would have been about a 1-in-10,000-year event, he says, citing recent ...

Maps show where extreme humidity and 90- or 100-degree temperatures will affect around 255 million people across the United ...

A public health researcher explains the signs someone is developing heat exhaustion or heat stroke, and what to do.

ABC News Chief Meteorologist Ginger Zee has the latest track and timing as severe weather targets major cities along the East Coast. From broccoli to booze to Brie, nothing makes presidents seem more ...

JOHANNESBURG (AP) — South Africa was under a declared state of national disaster on Thursday as the death toll from floods ...

(Here's what extreme heat does to the body.) Shade protects us from a heat wave double whammy: short wave radiation coming directly from sunlight, and long wave radiation coming from surfaces like ...