For climate protection, it is irrelevant where in the world CO2 emissions occur or where they are avoided. It is much more important that the harmful greenhouse gases do not get into the atmosphere in the first place. With climate protection projects abroad, much higher emission reductions can often be achieved with the same effort than at home. In addition, climate protection projects there in addition to the CO2 - Savings almost always have positive additional effects for the development in the country, e.g. by promoting infrastructural measures (road construction, railway lines, etc.), the medical infrastructure (new hospitals, medical service, mobile care units, etc.) and education (schools, further training measures, etc.). In this respect, projects in developing and emerging countries can be particularly sustainable and effective.