As a surfer, I get upset when I see plastic pollution in the water. Scientists estimate that millions of tonnes of plastic have been dumped into our oceans.
A new study reveals that we don't know where 99% of it has gone. It could be sinking to the ocean floor, or being eaten by fish and going back into our food chain.
I'm worried that we're polluting the world we depend on and don't know how to clean it up. It's time to cut the waste we create.