a plastic bottle sitting on top of a patch of grass

Plastic pollution on a beach in Maine, USA. This plastic water bottle found on a sandy beach in Maine, was beginning to break down, and was washed in along the wrack line in a mix of kelp and other seaweeds. Plastic pollution is one of the gravest threats facing our world's oceans. You can help prevent marine debris by always leaving the beach cleaner than you found it, and taking steps in your daily life to reduce your own single-use plastic consumption.