In the early 1970s, first the Club of Rome raised the awareness that natural resources are finite. This insight led quickly to the necessity to handle resources sustainable. It has not only influenced customers’ behavior, but moreover legislation that forced business companies to reduce emissions in manufacturing and to stimulate recycling processes in particular. Decades later, based on these beginnings a new branch of industry has arisen that has been able to proof that sustainability and environmental protection are not an obstruction for the private sector, but a possibility to make money. Today, Germany is one of world’s leading states of the so-called “green economy” that comprises various technical methods to ensure ecologic sustainability. Heinrich Böll Stiftung (HBS), a German foundation named after the writer and Nobel laureate Heinrich Böll, has been promoting ecology and sustainable development in Germany and numerous other countries since July 1st, 1997. Based on this profound expertise, HBS’ experts perceive extensive opportunities for Cambodia.