The ocean covers 71 percent of Earth's surface and contains 97 percent of the planet's water. The ocean plays an integral role in many of the planet's systems including climate and weather. The ocean supports the life of nearly 50 percent of all species on Earth and helps sustain that life providing 20 percent of the animal protein and 5 percent of the total protein in the human diet. Considering these and many more incredible statistics about the ocean, it goes without saying that it is one of the most important entities on Earth to protect from environmental harm. (Source: NOAA / Photo: Flickr)

Why your sunscreen is bad for coral reefs

The neuston is a floating ocean ecosystem, and our plastic cleanup push could threaten it

Why NASA is studying an island that didn't exist until 4 years ago

The weird and beautiful life hiding in Antarctica's frigid depths

Starfish make remarkable comeback in California years after deadly disease outbreak

Take an underwater journey with these 15 award-winning images

Plastic discovered at bottom of Great Blue Hole

Divers come face-to-face with giant great white shark in thrilling video

This grandmother spent 2018 cleaning up British beaches — and she's not done

Killer whale calf's birth is a ray of hope for endangered Puget Sound group

8 of the world's most spectacular scuba spots

Mystery of why the bottom of the Pacific Ocean is getting colder might finally be solved