For the past five decades the trend of human demand on nature has gone in one direction: upward. Our increasing population, growing per capita consumption and resource-intensive models of growth have demanded ever more capacity from nature" for food, raw materials, and absorbing rising levels of carbon dioxide. We passed the given limit of the global biocapacity already in the 1980s, and we are ignoring its dramatic consequences continously - so it is an evident step to transform our mass production schemes and our lifestyles towards sustainable systems, using our knowledge and capabilitiies, to manage that challenge in a professional way.