Conservationists condemn U.S. government plans to sell Chukchi Sea petroleum leases. The groups say polar bear and walrus populations weren't considered and Arctic warming wasn't factored.

As Earth warms and seasons shift, plants may become less efficient at keeping a greenhouse gas out of the atmosphere, a new study suggests.

The Arctic is warming faster in the air than near the surface, a surprising find that suggests atmospheric circulation plays a greater role in global warming than previously thought.

The delicacy is a status symbol in fast-growing China, where demand has caused a startling drop in the number of sharks in the Atlantic.

Southern Chile's Llaima volcano erupted in a fiery explosion of molten rock and ash this week. Tourists, park workers, and residents are evacuated from the area.

It was a record year for all-time weather records. Temperatures shot past previous highs on 263 occasions in the U.S. alone. A tornado in Brooklyn?

Rapid warming of the Antarctic Peninsula is decimating local populations of the tiny birds, which rely on winter sea ice to feed.

The third anniversary of the Boxing Day tsunami is observed, China unveils its first homemade commercial jet, Bavarian "monsters" celebrate Christmas, and more.

Shorter winters and shrinking ice caps are threatening many Arctic birds and mammals, Finnish experts say.

Pacific salmon are colonizing Atlantic waters off Argentina, posing a serious threat to penguins and other native wildlife that compete for food, experts say.

Bamboo-dependent pandas competed with ten-foot apes—and maybe even early humans—for food and territory in ancient China, scientists familiar with new fossils say.

The deadly floods and mud this week come three years after the earthquake-triggered tsunami that killed more than 150,000 in Indonesia alone.

Take a photographic tour of the remote seed bank deep inside a Norwegian mountain that is designed to house the world's crop varieties in case of a global catastrophe.

A wall enclosing a tiger that escaped and killed a teenager on Christmas was shorter than recommended, San Francisco Zoo officials say.

A seed bank being built on a remote Arctic island could stem the global disappearance of little-known but potentially valuable agricultural plants, a conservationist claims.