In its starring role as European Green Capital 2012, Vitoria-Gasteiz discusses the forefront of sustainability policies, shows the national and international technical delegations that visit the secrets of its key ecological award-winning urban development and is building a new public that is sensitive to its environment. For this purpose, taking advantage of the next World Environment festival (5 June), Gasteiz prepared the Green Week with a full programme of activities painted with this colour over a full week injected with pure chlorophyll, spreading values committed to nature dynamically and enjoyably.