In March 2015, BUND (Friends of the Earth Germany) has published “Sootfree Cities”, a ranking which graded the efforts of 23 major European cities to improve air quality. Upon this ranking, it is highlighted how European cities have been actively combating air pollution in the transport sector. Meanwhile, the local air quality actions are still not enough and cities are also exposed to pollution they cannot control. These emissions are regulated at national or EU level where inadequate actions against air pollution are seen.   The city of Zurich has become the winner, due to a mixed policy that includes a strong commitment to reduce pollution from vehicles, the promotion…