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.

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 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.

Dirty and dangerous offshore oil drilling threatens our ocean, while exacerbating the climate crisis. Oceana’s analysis finds permanent offshore drilling protections for unleased federal waters could prevent over 19 billion tons of greenhouse gas emissions as well as more than $720 billion in damages to people, property and the environment.

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

As apex predators, sharks play an important role in the ecosystem by maintaining the species below them in the food chain and serving as an indicator for ocean health.

FEATURED CAMPAIGN Plastic Pollution

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.

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.