Surfers Against Sewage (SAS) is an environmental charity established in 1990 to protect UK oceans, waves, and beaches. SAS campaigns on issues like marine litter, wave protection, water quality, climate change, and education. Their work includes influencing government policy, organizing volunteer cleanups, educating communities, and challenging industry standards. Through campaigns targeting plastic pellets, sewage overflows, and climate change impacts, SAS raises awareness and advocates for cleaner and safer seas.