In Sheffield, the air we breathe has been above legal limits for Nitrogen Dioxide (NO2) for 10 years, contributing to 500 deaths each year from lung cancer, cardiovascular disease and stroke. The biggest cause of air pollution is transport, especially diesel vehicles. Sheffield City Council (SCC) have pledged to reduce the number of people driving diesel cars and are promoting electric car use with electric vehicle trials, alternative fuels, green parking schemes, publicity and awareness raising events.