Experience shows that the global problems of our environment can only be solved as a whole if they are carefully examined in detail. The responsibility starts with the daily actions of each individual. Because the great challenges of the future can only be mastered with local commitment and the cooperation of every individual. The framework conditions for the promotion of clean drinking water are very different globally and locally. The only common denominator is that clean drinking water has always characterized a civilization's quality of life and responsibility for its immediate environment. We live in a world of limited resources: Not only energy, but also water is becoming scarce. Both energy and water are directly related to each other - and thus exacerbate the potential for conflict.