EN
Opinions about the insufficient realization of international strategies taken after the Rio Declaration on Environment and Development in 1992 appeared particularly in the last decade. In spite of adopted legislative acts and the years passing, the global development does not seem positive. The growth of world cities should be accomplished according to the idea of sustainable development, yet it is not easy to be achieved in practice. A deliberate policy and comprehensive action of cities themselves are needed, which will contribute to changes of the current awareness, of beliefs and social behaviour. Popularizing successful examples of sustainable cities seems to be very important. This paper aims to present practical action taken in Vancouver, which caused it to be one of the greenest cities in the world.