In Morocco, floods worsened by climate change damage or pollute drinkable water sources. While victims seek accommodation, there is a question of how to adequately support citizens in addressing such complex environmental issues. Design thinking and Facebook were chosen in order to accompany ten Moroccan women in solving a problem with drinking water caused by flooding. In design thinking, needs analysis, abduction and rapid prototyping are promoted. Like other social networks, Facebook could facilitate problems definition, discussion and elaboration of solutions. With the help of videos, pictures and comments, the participants shared on Facebook their experience on flooding, and tried to solve together their drinking water problem. Design thinking and Facebook allowed these women to explore many aspects of the problem, and to prototype and implement diverse realistic and locally adapted water purification solutions. It is the creative dimension of this initiative, and the use of diverse media that allows establishing here a link with the artistic process.