The latest edition of the Volvo Ocean Race has just begun, with 7 teams competing in this round-the-world spectacular. One of the themes of this iteration is fighting the pollution caused by plastic. The oceans are becoming seas of plastic, from fishing nets to microbeads, and the plastic is getting into the food chain.
One of the biggest offenders is the single-use water bottle, a now common item in many households. All plastics degrade into tiny pellets, which stay in the environment for a long time, decades in some cases. Although plastic can be re-used in making some products, the majority is simply discarded, ending up in landfills and the ocean.
Fish ingest plastic in the form of microbeads, which become lodged in their tissues. Often, the fish are eaten by other fish, further up the food chain. Humans are at the top of the food chain, so the things that creatures down the food chain consume can end up in our bodies. The huge increase in the numbers of single-use water bottles portends ever-increasing amounts of plastic getting into our bodies. The sailors of the Volvo Ocean Race encounter plastic in every ocean, all over the world.