Environment

It's used to make cleaner-burning gasoline in about four dozen refineries in the U.S., including two in Philly region.

The “feels like” temp could hit 113 degrees.

Science has largely debunked the idea that the moon influences our behavior — but recent research is questioning that modern wisdom.

Heavy rain shifted the lid of a tank at PES refinery causing fumes to escape. City officials say there is no sign abnormal pollutants were released

Horseshoe crabs breed along North America’s eastern coast, from Maine to Mexico. And every year, tens of thousands of them hook up on the beaches of Delaware and New Jersey.

We discuss the threats to African and Asian elephants, the illegal ivory trade, what we're learning about their minds and social lives, and their relationship with people.

Liberal Democrats have embraced an obscure brand of economics — "Modern Monetary Theory" — to make the case for deficit-financed government programs like the Green New Deal.

Philly is under a heat health emergency this week — a new scientific report says the region will see more dangerously warm days if there's no action to cut global emissions.

Beachgoers looking for at least some relief from searing heat and humidity Wednesday will have to deal with a high risk of rip currents.

Pennsylvania state officials are asking for the public’s help in controlling the spotted lanternfly — an invasive insect that is both a nuisance and a threat to crops.

PFAS chemicals have been discovered in some private water wells in Bucks Couny. Why are some Pennsylvanians only now realizing their water is contaminated?

Some physicians say connecting the environmental effects of climate change to the health consequences helps them better care for patients.

Democratic presidential candidate Jay Inslee met with members of the environmental advocacy group Philly Thrive on Saturday to hear about their Right to Breathe campaign.

Scientists are making progress in identifying environmental hazards that contribute to cancer. Researchers say many cases could be avoided if the work is accelerated.

A Delaware refinery has reached a settlement over its release of toxic chemicals into the air.