Greenpeace activists are pulling a car on a rack wagon through the city of Zurich to symbolise a car free city. The rack wagon is covered with banners saying: 'AUTOS RAUS AUS DER STADT’ translated in English: 'CARS OUT OF THE CITY’, 'MEHR LUFT AM LEBEN’ translated: 'MORE AIR TO LIVE’, and 'CAR FREE ZURICH’. The aim is to reduce the amount of traffic in the city therefore reducing air pollution. Zurich suffers from heavy air pollution.