Energy/Environment

How and dry conditions could increase wildfire risk.

The three high-school birders, dubbed The Pete Dunnelins, have one day to count as many bird species across the state of New Jersey as physically possible. Here's what it takes.

Arizona farmers would be among the first affected by a new proposal to reduce water delivers from the Colorado River. They hope it leads to longer term stability.

Brian Fennessy, new head of the U.S. Wildland Fire Service, says his agency is 'trying to bring on additional aircraft and bring them on early,' and dismisses criticism of prevention methods.

Cold War reports of mysterious rotating saucers; recent sightings of metallic elliptical objects floating in mid-air. Those and other reports of unidentified anomalous phenomena or UAPs — the military's term for UFOs — are described in documents released Friday.

A new art-house drama tells three stories that span the century — and connect to one tree. Silent Friend will open your eyes to the beauty of the natural world.

He was born before the Great Depression, came of age in WWII, and is still making wildlife documentaries. Brits call David Attenborough a national hero, as he celebrates his 100th birthday.

County commissioners gave the project a green light on Monday, but it still needs to obtain water rights at a time when the Great Salt Lake is nearing a new record low in water levels.

New Orleans may have crossed a “point of no return” as rising seas, sinking land and stronger storms converge.

Ahead of the biggest day in birding, we take an inside look at the Cornell Lab of Ornithology, home to millions of audio clips of birds from around the world.