Every year, about 400 million tonnes of plastic products are produced around the world. About half are used to make single-use items such as shopping bags, cups and packaging material.
Of these plastics, an estimated 8 million to 10 million tonnes end up in the ocean each year. If flattened to the thickness of a plastic bag, that is enough to cover an area of 11,000sq km (4,250sq miles). That is about the size of small countries like Qatar, Jamaica or the Bahamas.
