During the 1980s, a growing proportion of British environmental policy was made as a result of new legislation required by European Community decisions. This was particularly the case with air and water pollution, toxic wastes and problems affecting the North Sea. Community decisions also had an important effect on countryside and wildlife issues: the Common Agricultural Policy was behind much of the controversy surrounding British countryside policy, the Community directive on wild birds prompted the passage of the 1981 Wildlife and Countryside Act, and a proposed directive on the protection of natural and semi-natural habitats encouraged more discussion in the late 1980s about countryside issues.