Did you know that oceans cover 71% of the Earth’s surface?

On our beautiful blue planet, the sea covers more than 70% of the surface. Far more species live in the oceans than on land. The marine environment provides livelihoods and food for hundreds of millions of people. But the world’s oceans, seas and coasts are under severe strain. The biggest threats right now are overfishing, climate change and pollution.


Every year, over 250,000 marine turtles drown, entangled in the fishing lines and nets that choke the world’s oceans. You can help us protect the future of these incredible animals from as little as £3 per month.

Why oceans matter

The world’s ocean and coasts are home to an incredible array of life and vital to human health, livelihoods and cultures. But damaging and unsustainable human activities are weakening the ocean. Fragile ecosystems such as corals are dying (corals are predicted to disappear by 2050), some species are at risk of extinction and others with major commercial value are just a shadow of their former abundance. The Arctic Ocean and Southern Ocean – for example – are two of WWF’s largest iconic priority places, covering 73 million sq km across two entire oceans. They contain some of the world’s most intact ecosystems, but they are threatened by rapid climate change and at risk from a range of human activities including fishing, mineral development and shipping.

What we’re doing to help

Despite their huge size, the oceans have been greatly affected by human activity. Pollution and overfishing are 2 major concerns.

Our decades of experience, from the Gulf of Mexico to the Southern Oceans, has shown that people are key to sustain the ocean. WWF has hundreds of projects addressing conservation of the world’s oceans and marine wildlife. Our campaigns aim to help the recovery of threatened species of marine fishes such as sharks, marlins and tunas, and to encourage sensible, sustainable fishing practices which do not overuse or waste fish.

How you can get involved!

As the global population continues to increase, demand for seafood has been growing rapidly. You can make a difference to the way our fish stocks and fish farms are managed. By choosing seafood from healthy, responsibly managed sources, look for the Marine Stewardship Council or Aquaculture Stewardship Council logo on fish products, you can help drive the UK market towards more responsible sourcing and improving the sustainability of seafood.

You might also want to make an adoption, where your donation will be used to promote sustainable use of natural resources, enable local communities to manage protected areas, and fund our other essential work around the world.