Elysee Barakett

Cases of Valley fever have been climbing in California. An outbreak among attendees at a music festival highlights the fungal infection’s mounting threat.

President Biden passed the U.S.’ most significant climate legislation, but leaders of youth climate groups see Kamala Harris as stronger on environmental issues.

Sunday’s record as the hottest day ever recorded on Earth lasted only until Monday, as the planet broke records back-to-back this week.

Sunday was the hottest day ever recorded on Earth, according to data from the European Union’s Copernicus Climate Change Service.

Sunday was the hottest day ever recorded on Earth, according to the EU's Copernicus Climate Change Service. The average global temperature slightly exceeded the record set last July.

Seven deaths in Texas caused by Hurricane Beryl were the result of heat exposure because of widespread power outages.

Wind power generated more electricity than coal in the U.S. in March and April, a sign that the setbacks offshore wind faced haven't halted the industry’s momentum.

Amid record-breaking heat waves, doctors caution that some of the most vulnerable people dying from extreme heat — infants — can easily get overlooked.

A NASA mission to test how living on Mars would stress and test a human crew ended Saturday, with four volunteers emerging from more than a year in a 1,700-square-foot structure.

Nine cases of West Nile virus have been confirmed so far this year, as disease experts say the virus appears to be circulating more than usual for this time of summer.

Officials in at least 10 states have closed beaches or warned people not to swim in the water due to high bacteria levels ahead of the Fourth of July holiday.