According to recent estimates, the ocean is filled with eight million tonnes of garbage - enough to fill five carrier bags for every foot of coastline on the planet.
...Around 8 million tons of plastic bottles, bags, toys and other plastic rubbish ends up in the world's oceans each year. Because of the difficulties in working out the exact amount, since much of it may have sunk, scientists say the true figure could be as much as 12.7 million tons polluting the ocean each year.
Carried by sea currents, this waste congregates into five giant 'garbage islands' that swirl around the world's major ocean gyres.