A newly-deployed satellite has created the most-detailed map yet of the ocean floor, finding hundreds of hills and underwater volcanoes that were previously missed.

View the interactive map here: New York City came ... city set to feel the impacts of rising ocean levels. With a population ...

And if you want to understand precisely how sea-levels will rise in different parts of the world, good ocean-floor maps are a must. Much of the data that's been imported into the GEBCO grid ...

The Great Pacific Garbage Patch is a gyre of plastic debris in the north-central Pacific Ocean. It’s the largest accumulation of plastic in the world. Just how big is it? Using the map below, click ...

A turtle with a plastic bag in its mouth. Rubbish finds its way around the world, pollutes the oceans and can be harmful to sea creatures. Some kinds of rubbish, such as plastic, are eaten by sea ...