The Life Cycle of a Plastic Bottle
We’ve all been told that we should recycle plastic bottles and containers. But what actually happens to the plastic if we just throw it away? Here are the life cycles of three different plastic bottles.
Bottle One, like hundreds of millions of tons of its plastic brethren, ends up in a landfill. This huge dump expands each day, as more trash moves in and continues to take up space.
As plastics sit there being compressed, rainwater flows through the waste and absorbs the water soluble compounds it contains, and some of those are highly toxic. Together they create a harmful stew called “leachate”, which can move into groundwater, soil, and streams, poisoning ecosystems and harming wildlife. It can take Bottle One an agonizing 1,000 years to decompose.
Bottle Two floats on a trickle that reaches a stream, a stream that flows into a river, and a river that reaches the ocean. After months lost at sea, it’s slowly drawn into a massive vortex, where trash accumulates - place known as “The Great Pacific Garbage Patch.” This is one of five plastic filled gyres in the worlds seas.
Some animals mistake the brightly colored plastic bits for food. Plastic makes them feel full when they’re not, so they starve to death, passing the toxins from the plastic up the food chain, eventually to us.
Bottle Three, on the other hand, is recycled. It’s taken away on a truck to a plant, where it and its companions are squeezed flat and compressed into a block. The blocks are shredded into tiny pieces, which are washed and melted, so they become the raw materials that can be used again. Bottle Three is ready to be reborn, as something new.
So, what can you do? First - reduce your use of plastic altogether! And when you do find yourself needing to buy a bottle, don’t forget to recycle it. You’ll be doing Planet Earth a great, big favor.
From the TED-Ed Lesson What really happens to the plastic you throw away - Emma Bryce
Animation by Sharon Colman Graham