Sharks, bacteria, and pool closures combine to threaten swimming. Fun is at stake, say experts, but also public health.

New research offers insights into how climate change will affect child welfare.

Heatwaves are happening more often and are becoming more deadly, a new study shows.

Dry lightning can spark wildfires even when conditions are wet, according to a new study.

Cities around the world are battling extreme heat this summer. An expert explains why and how record temperatures aren't the whole story.

Some migratory birds seek the same weather conditions all year long to avoid the changing seasons. New research digs into how.

Seasonal depression isn't limited to dark, cold, and gloomy winters. Here are tips for keeping your mood up when summer temperatures rise.

Unseasonably warm and cold days can prolong the active period of moths and butterflies by nearly a month. "The results are not at all what we expected."

Lengthy blackouts are more likely to take a toll on Americans who already bear the brunt of climate change and health inequities.

2023 "will be a very active hurricane season," says Xubin Zeng. "People should get prepared."