What kind of tourism should we promote for the next decades?

Tourism is a major economic activity in the world, and also a basic need for all populations. However the patterns of this activity are obsolete, based in a short-term economic perspective and producing a high level of negative consequences. The aims of tourism are now very far from the ecological and social needs of mankind. We must find and promote new paradigms to promote an adequate development of this activity, using scientific outcomes and an interdisciplinary knowledge in order to aspire towards (really) more sustainability. The new tourism should be a tool to educate people to respect the last natural relics of the planet and to use properly the few natural resources still available.