Environment

Recent unseasonably warm weather has lured some frogs out of hibernation early. Herpetologists worry what that might mean for them — and other animals.

Federal regulators have effectively denied a request to reconsider their approval of the planned PennEast Pipeline, the agency’s critics say.

A coordinated effort is working to keep Delaware’s water clean starting at the source across the border in Pennsylvania.

The red knots stop for nourishment along the Delaware Bay on their annual journey from Chile to the Arctic.

Low and variable snowfall is expected to become more commonplace as the climate warms.

Sunoco said Thursday it aims to begin operating its Mariner East 2 pipeline across southern Pennsylvania by the end of the second quarter of this year.

Residents in Blades will soon be able to drink public water, a couple weeks after their supply was determined to be unsafe.

Maybe you just want to see penguins or icebergs, but visiting the South Pole also means transforming the landscape — and adding to your carbon debt.

Communities along Canada’s western coast combine conservation and tourism to create jobs that line up with their cultural values.

Tourists once flocked to El Yunque National Forest. After landslides of hurricane damage in 2017, work crews are sweating to reopen it.

Speaking to hundreds of refinery workers, Cruz railed against the federal program known as the Renewable Fuel Standard (RFS), while the workers cheered.

The refinery is Philadelphia’s single largest stationary source of particulate pollution.

Despite her alarm at the prospect of losing her spring water, Anthony says she’s not moving even if the pipeline is built on her land.