Oceans

Baffling new results show that rocklike mineral deposits in the deep sea can produce oxygen

A tall cactus found only in Florida’s Key Largo is the U.S.’s first species to go extinct from sea-level rise

Researchers on a multimonth Antarctic expedition describe how the climate crisis intertwines with their work.

A case about Atlantic herring has resulted in SCOTUS ending a 40-year policy to defer to expert agencies when considering regulations. The effects will likely be felt far beyond fishing

Get a behind-the-scenes look at how researchers live and work on a U.S. icebreaker making its way through the waters of West Antarctica.

Scientists finally know how a gelatinous deep-sea creature keeps its cells from paralysis under pressure

To unravel the effects of melting sea ice, researchers drill the frozen waters around Antarctica and receive a surprise visit from a group of penguins.

Gray whales in a small group that sticks close to the shores of the Pacific Northwest appear to be shrinking—and shockingly quickly

Massive blobs of sargassum seaweed are taking over Caribbean beaches. The seaweed explosion is fueled by pollution washing into the ocean from rivers in the Americas and Africa

Researchers are investigating how an iron infusion from glacial meltwater might change Antarctica’s seas and the climate.

Warming waters are reaching several miles into Antarctica’s Thwaites Glacier—nicknamed the “doomsday glacier” because of its potential impact on sea-level rise

A stunning photography collection underlines how climate change is altering the world’s coastal and lakeside environments