Hawaii's environment is threatened by several issues including trash pollution, invasive species, and water shortages. Tons of trash wash up on beaches each year harming wildlife and coral reefs. Hawaii has a high percentage of endangered species that face new threats from invasive snakes and animals. Additionally, the town of Kona may have to ration water as several wells are unusable and consumption has not decreased despite the stressed water infrastructure. These environmental problems endanger Hawaii's tourism economy and unique ecosystem.