Environment

A hidden world of pathways leads wild animals safely across busy roads, keeping ecosystems connected even as human use fragments and disturbs them.

Since the 1950s, a timber company has used conservation-driven logging to balance productive use and wild forests.

More than two dozen wind farms popped up across the state leading up to 2012, but only one in the years since.

The case is centered on a 2014 ban and a subsequent municipal charter adopted by Grant Township that banned fracking wastewater injection projects.

As Philadelphia considers creating safe injection sites, a Federal crackdown could follow. In the waning days of his governorship, Chris ...

The settlement pertains to 10 coal-fired power plants around the state that have been operating on expired water pollution permits for years — in one case for 17 years.

More than 3.4 million Pennsylvanians are supplied by drinking water containing radium that exceeds a strict California standard, which advocates say should replace a looser fe

State Attorney General Matt Denn sent a letter to U.S. Interior Secretary Ryan Zinke to formally object to the federal plan to allow oil drilling off Delaware’s coast.

As more farmers choose Detroit as a place to put down roots, some are wondering what the future of urban agriculture look like.

Mice, rats, mosquitoes, lizards, and other animals are adapting to live in environments created by humans.

U.S. Interior Secretary Ryan Zinke has removed Florida’s waters from consideration for expanded offshore oil and gas drilling — and New Jersey wants the same exemption.