So where does the oceans' plastic waste come from? - eviltoast
In the form of bottles, tires, packaging and piping, millions of tons of plastic waste are dumped every year in the world's waterways, often ending up in the oceans.

The Philippines, which has thousands of islands, dumps the most plastic into the sea. Its Pasig River, which flows into Manila Bay, is “the most (plastic) polluted” in the world.