There are many photos of the ocean, which in some parts is littered with all sorts of waste, often plastic bags, containers etc. But I just wonder - how do such large amounts land in the ocean/sea? Isn't waste disposed at secure sites - so such a bug would either be recycled or in the worst case end up on some landfill? Of course rogue companies or entities could occasionally dump some thrash into the ocean, but the massive amounts of it seem surprising to me. Beside, often the argument is to not use plastic bags, containers etc. but simply USING them doesn't put them in the sea. So what does, and can it be stopped?