Oceans

A NOAA illustration shows how La Niña usually affects winter weather.

It’s Back: La Niña Has Returned

What the phenomenon may mean for winter weather

Mustard gas from wars past is decaying in the world's oceans—but scientists don't yet know how dangerous it could be. Here, U.S. Navy ship prepare for scheduled deployment in the Pacific Ocean in 2014.

Chemical Weapons Dumped in the Ocean After World War II Could Threaten Waters Worldwide

How worried should we be? Chemists are racing the clock to find out

Beep. Beep. Beep. Beep.

Canada Can’t Figure Out Why the Ocean Floor Is Beeping

A mysterious sound has baffled residents of a far-flung hamlet

Brian Helmuth and his lab at Northeastern University engineered the little black data loggers from polyester resin.

Robot Shellfish May Tell Us About Climate Change's Impact on Marine Species

Climate scientists at Northeastern University have developed "robomussels" with sensors to track temperatures in mussel beds

View from under the sea ice of the Ross Sea, Antarctica.

World's Largest Marine Sanctuary Declared Off Coast of Antarctica

The 25 parties to the Commission for the Conservation of Antarctic Marine Living Resources voted to protect 600,000 square miles of the Ross Sea

Mangroves are rich and biodiverse coastal ecosystems that flood and emerge with the tides. Now villagers are burning these trees to better their lives.

Madagascar's Mangroves: The Ultimate Giving Trees

Locals already use the trees for food, fuel and building materials. Now they're burning them to make lime clay

Not all clothes are created equal.

Doing Laundry Can Be Deadly for Clams, Mollusks and Other Marine Animals

Pick your wardrobe carefully—the lives of sea animals may depend on it

Coming Soon: Otter-Inspired Wetsuits

A team at MIT has figured out exactly how otter and beaver fur keeps the animals warm in cold water

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How Earthquakes and Volcanoes Reveal the Beating Heart of the Planet

The Smithsonian Global Volcanism Program has stitched together a visual archive of the world’s earthquakes and volcanoes

A remote-controlled hexacopter captured this image of two northern resident killer whales photographed from 100 feet. Scientists use the unmanned drone as a cost-effective, non-intrusive method for monitoring the health of whales.

How Drones in the Sky Unlock Secrets of the Sea

Researchers are using aerial technology to track coastal erosion, map coral reefs and even give whales a breathalyzer

Kure Atoll, the northernmost reef in the Hawaiian archipelago, hosts mesophotic reefs with the most species unique to a specific location found in any marine ecosystem on Earth.

Here’s What Scientists Found in Hawaii’s Mysterious “Twilight Zone”

Deep coral reefs reveal their secrets in a study two decades in the making

The rare green sea turtle, shown here on a volcanic beach in the Pacific, made a mysterious reappearance on Bermuda's shores in 2015.

The Strange Reappearance of the Once-Vanished Green Sea Turtle

It's a conservation biology riddle wrapped in a mystery inside a hard shell

African penguins at the Cincinnati Zoo

The Search for Buddy the Kidnapped Penguin Continues

Two students stole and released an endangered African penguin from an Oceanarium. The problem is Buddy doesn't have the skills to survive

Inside the World's First Large-Scale Effort to Harness Tidal Energy

Next month, the UK-based company MeyGen will install four underwater turbines off the coast of Scotland

A reef off the coast of Bonaire

Jacques Cousteau's Grandson Is 3D Printing Coral Reefs

Fabien Cousteau, descendant of the famous sea explorer, is working on a project to bring 3D printed coral reefs to the Caribbean island of Bonaire

A hammerhead caught on a longline.

Is It Too Late to Save Red Sea Sharks?

With anti-fishing laws virtually unenforced, sharks off the coast of Saudi Arabia are being fished to death

The Boston Light still shines brightly at night in Boston Harbor.

The Oldest Lighthouse in the United States Just Celebrated 300 Years of Service

The Boston Light still welcomes sailors to Boston Harbor

A Fresnel lens from the Boon Island Lighthouse off of southern Maine.

The U.S. Government Is Suing for a Set of Lighthouse Lenses

The lenses could be worth up to $600,000

The monument protects an array of endemic, threatened and endangered species, including the sperm whale.

Obama Declares the First Atlantic Ocean National Marine Monument

With the announcement of the Northeast Canyons and Seamounts Marine National Monument, Obama solidifies his legacy as an ocean guardian

Awesome New Maps Show Alaska in High-Resolution Detail

The ArcticDEMs are the first set of detailed elevation maps of the Great White North

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