For more than s century Britain has been developing policies to conserve the natural and built heritage and protect the environment against pollution from industry and other sources. Britain helps international organizations on environmental protection. The Government controls over waste air pollution litter noise and water pollution.The National Rivers Authority is responsible for the control of water pollution in England and Wales.The south-west coast of Wales was seriously affected by one of Britains largest oli pollution incidents in 1996. oli leaked into the sea. However a major clean-up operation was done.