The results are in⦠and PLASTIC is once again crowned the top polluter in our national parks!
Our 2025 Plastic-Free Parks report was published today, revealing results from an analysis of 23,663 items from 59 sites around the country. According to data submitted by volunteers (thanks to all who participated this year!), plastic is the most prevalent material polluting national parks for the fourth year in a row, making up nearly 85% of waste recorded in 2025.