The Great Pacific Garbage Patch, a floating accumulation of rubbish the size of a continent, has whales and dolphins in its heart.
Where does plastic waste go when it reaches the ocean? For most of it, not far.
Cleaning up plastic pollution in the ocean is good – and long overdue. But where will the waste go? Recycling isn't always an option. Bacteria and enzymes could process it, raising new questions.
Research finds removing plastic from the ocean has huge economic benefits, even if there is little money to be made doing so.
Tonnes of plastic end up in the ocean each year, but a switch away from petroleum-based products to bio-derived and degradable composites could lessen marine pollution.