This is the first ever digital map of the Earth's seafloor, revealing deep ocean basins to be much more complex than previously thought.

The campaign to stop President Barack Obama's sweeping emissions limits on power plants began taking shape Wednesday, as 16 states asked the government to put the rules on hold while a Senate panel

People are getting dementia earlier, with those in their late 40s now regularly diagnosed with the disease.

Exceptionally warm water moving from the western Pacific Ocean towards South America has caused El Niño to get even stronger in recent weeks.

The U.S. Forest Service has raised hundreds of concerns about a proposed natural gas pipeline that would carve a 30-mile swath through national forests in Virginia and West Virginia.

A million-gallon mine waste spill that sent a plume of orange-ish muck down a river in southwest Colorado on Thursday was caused by a federal mine cleanup crew.

Hundreds of doom-laden studies about the effects of climate change on the Earth's oceans may be flawed and unreliable, a major review has found.

Nearly two-thirds of shoppers believe biodegradable and recyclable bags should be exempt from the levy being introduced this autumn.

For at least fifty years, phytoplankton and algae blooms have been a regular occurrence in summer on Lake Erie.

The final version of the U.S.