A 20 percent increase above current carbon dioxide levels, which could occur within the next two decades, could significantly reduce the ability of corals to build their skeletons and some could become functionally extinct within this timeframe.

FEATURED CAMPAIGN Plastic Pollution. Oceana campaigns to stop plastic pollution at the source — by working to pass local, state, and national policies that reduce the production and use of unnecessary single-use plastic and move toward refill and reuse systems.

The largest seal species in the Arctic, the bearded seal is named for its long, white whiskers resembling a beard. Learn more.

Working to protect and restore our oceans, Oceana is the largest international advocacy organization dedicated solely to ocean conservation. Learn more and get involved.

Saving the oceans can sometimes feel like an overwhelming task, but if we all pitch in, we can make a big difference. While there are a variety of lifestyle choices that, when adopted, can help the oceans, here are our top 10 ways you can help save the oceans!

The polar bear is the largest terrestrial predator in the Arctic. It is formidable on land, on the ice surface, and in the water. To best protect polar bears and other marine life, Oceana is focused on addressing all of the threats affecting the Arctic, including offshore drilling and climate change.

The Aleutians are habitat for several endangered species, including Steller sea lions, sea otters, short-tailed albatross, and humpback whales.Aleutian passes are also critical travel corridors for most of the world’s gray whales and northern fur seals, which transit the passes to feeding and breeding grounds.

Jan 8, 2025 · When ocean temperatures exceed their normal range — increasingly due to climate change — corals experience extreme stress and expel their zooxanthellae. This leaves them “bleached” and vulnerable. Bleaching events have become more frequent and severe, posing an ever-increasing threat to coral reefs.

The spotted ratfish, also known as chimaeras, has a skeleton made of cartilage rather than bone - like sharks and rays. Learn more about chimaeras and their habitat.

What does Oceana do? We campaign worldwide for policy change to restore and increase ocean biodiversity and abundance. Get to know our mission, history, and work.