In WAT-CHANGE - Water-Related Ecosystem Services for Adapting Societies to Climate Change Seasonal School aims at introducing the participants to the new growing area of solutions provided by water-related ecosystem services. In particular, we will deal with nature-based solutions for water supply, treatment of polluted water, and flood risk mitigation such as managed aquifer recharge, river restoration, constructed wetlands, sustainable drainage systems, and remediation of contaminated sites using phytoremediation techniques.