Rising sea-surface temperatures are harming the reproductive success of right whales in the southern Atlantic, researchers say.

A phenomenon known as the urban heat-island effect can bump up energy costs in the summer and can even cause cities to create their own weather, a NASA expert says.

It's been 20 years since Alaskans have felt its rumble or the grit of its ash, but Augustine Volcano has roared back to life.

The practice of removing mountaintops to mine coal is polarizing opinion in Appalachia.

The die-off of harlequin frog species in Central and South America is the result of a deadly fungus spurred by global warming, a new study suggests.

Dogs can detect if someone has cancer just by sniffing their breath, a new study shows.

About 1.8 billion years ago, a meteorite or comet the size of Mount Everest slammed into Earth, turned part of the crust inside out, and dusted the surface with a rare metal.

Grasses and other green growth may produce 10 to 30 percent of Earth's annual methane output, a new study reports.

Snuppy really is the world's first cloned dog. But Korean scientist Woo Suk Hwang faked human embryo clone and stem cell research, an investigation confirms.

Cutting down the last remaining trees greatly reduces some burned forests' ability to bounce back, a new study says.

The return of a top predator in a Bahamas marine reserve is proving to be unexpectedly beneficial to the coral reef it calls home, a new study says.

Conservationists say they can restore Appalachia's once-dominant chestnut forests if scientists succeed in their efforts to breed new, blight-resistant strains of the tree.

North Carolina restaurants can now toss oyster shells into the recycling bin. State officials are using the shells to build oyster reefs to help restore coastal fisheries.

Find out how conservationists are trying to save Africa's dwindling population of mountain gorillas from habitat loss and the worst spate of poaching since the 1980s.

They may not experience hot flashes or migraines, but female gorillas reach menopause just like human women do, according to a new study of gorillas at 17 U.S. zoos.