Surfers Against Sewage (SAS) is an environmental charity established in 1990 by surfers in Cornwall to improve water quality at UK beaches. SAS campaigns on issues related to the sea and coastlines like litter, sewage waste pumped into the sea, and toxic chemicals. They have achieved awards and influenced companies but still hope to make all UK beaches litter-free and increase public awareness of threats like climate change. SAS also campaigns against threats from shipping like oil spills and flags of convenience that can pollute the sea. They provide key facts and figures on marine litter and pollution to support their campaigns and awareness efforts.