[fre] La forêt reste la destination de loisirs privilégiée des Français. Face à la croissance de la demande, la loi d'orientation sur la forêt de 200 1 se tourne vers les forêts privées. Pour assurer la compatibilité de l'ouverture récréative avec les autres fonctions de la forêt,...

[eng] The recreational services provided by the natural environment are highly heterogeneous and most of them are non market. for management purpose however, it is useful to fully appreciate individuals preferences for recreation attributes and provide a monetary value for outdoor recreation....

France and Germany have developed their own water pollution policies which combine to varying degrees incentives-based instruments and effluent limits. However, organisational traditions as well as demographic and geographical particularities have led to the implementation of different...