Ocean

The country is offering more than 20,000 miles of untouched ocean in the Mozambique Channel for future oil exploration.

Plastic pollution in the ocean is a growing threat to the survival of sea turtles.

It will help scientists more accurately measure the presence of vocal species like bats, birds, bees, and tigers.

But scientists are having a hard time illustrating these problems as shifting baselines continue to redefine what is considered normal for reef health.

A less icy Arctic will be an economic boon for some, but marine wildlife experts are focused on the increased risks more ships will pose to certain polar species.

Plum Island is a case study in how communities are reacting not just to the ebb-and-flow of nature, but to a changing ocean.

Alaska Airlines has become the first airline to renounce the use of plastic straws in an effort to raise awareness about the use of single-use plastics that pollute the world's oceans.

Marine researchers are hoping to uncover what is drawing the sharks to an open stretch of ocean in the Pacific known as "White Shark Cafe."

A visitor participates at an event during the eighth World Water Forum in Brasília, Brazil, on March 20th, 2018.

Hint: Don't go after the Great Pacific garbage patch—which, by the way, isn't really a patch at all.

Here was some of the big news coming in from the big blue sea in 2015.

Any oil that would have sunk to the bottom of the ocean is out of sight—but officials shouldn't put it out of mind.

Now a cold, barren desert, Mars once had an ocean bigger than the Arctic.

It's a fearsome problem. But we're not just watching helplessly.

As global warming melts ice and ushers in a wave of commercial activity in the Arctic, scientists are thinking about how to protect environments of the future.

Ships disappear everywhere, not just in the western North Atlantic Ocean.

For starters, let's stop calling it "Earth Day."