An animal not seen in Ohio in over a century, the fisher, has been spotted on a local wildlife camera. The sighting has raised hopes that the native mammal is naturally returning to the state.

John Ryan, KUOW environment reporter, describes how a series of powerful storms overwhelmed Washington's rivers and communities.

Record flooding in Washington state has forced tens of thousands of people to evacuate after torrential rains this week.

The Oreo-sized baby turtle represents a turning point in Rockalina's recovery: Spending time with her own kind.

The city of Los Angeles is no longer fueled by coal -- how did they make that happen, and what can other cities learn from experience?

With the rise of artificial intelligence, the United States is trying to satisfy an unquenchable thirst for new sources of electricity.

Forecasters predicted an above-average season this year.

Most hunters headed into the field will be armed with bullets made of lead. But lead is toxic for predators eating the animals that hunters shoot and leave behind.

Death cap mushrooms look harmless, but are responsible for the majority of the world's mushroom-related deaths. California officials say 21 people have been sickened in recent weeks, one fatally.

By the mid-1900s, black bears were becoming increasingly rare in Far West Texas.