Analysts say coal may stabilize supplies for now but they warn that continued reliance on the polluting fuel will worsen air pollution.

For decades, firefighters used a fire-fighting foam that contained PFAS, the substances known as 'forever chemicals' that can cause cancer and other illnesses.

Researchers at the Woods Hole Oceanographic Institution have uncovered the oldest known recording of whale song. And it reveals a noisier soundscape of today's oceans.

Habitat loss is the biggest driver of extinction for species globally.

One month ago, nine people were killed in an avalanche near Lake Tahoe, California,

A century ago, miners in Tonopah risked their lives to pull a fortune of silver and gold from the nearby mountains. Though the mines went quiet years ago, the town of a little more than 2,000 people is betting that another boom is on the horizon.

Seawalls are great at protecting property and people. A new nature-inspired seawall add-on is trying to make them better at protecting marine wildlife too.

Utilities are convincing lawmakers around the U.S. to delay bills that would allow people to buy solar panels, plug them into an outlet and begin generating electricity.

The Trump administration recently revoked the endangerment finding that required the government to limit emissions from power plants, cars and other industry sources.

A new report warns of a concerning lack of oversight into geoengineering, or weather manipulation.