The ocean is pretty harsh when you’re just out there, exposed to the rolling waters. So harsh in fact that it can break down plastics like LEGO bricks which are built tough. We’ve known for a while that the plastic toys could survive for a long time in the sea but scientists have recently discovered that “a long time” could be as much as 1,300 years!
The study shows how long ABS plastics can last in the oceans as well as how they break down. The scientists compared LEGOs that had been exposed to the ocean for an extended period of time to sets that were from the same time period. They were weighed to find the difference in size.
The results informed the researchers on how long the bricks would likely last if they had stayed in the water. As it turned out, it could be for a very long time. Which means if you take your blocks to the beach, remember to take them all home with you.