Founded by UNICEF, The Global Interfaith Wash Alliance is a coalition of different faiths. Their goal is to provide access to safe drinking water as well as spread knowledge of sanitation to people all around the world. They are achieving this goal by working together with faith leaders who can help spread this information much more effectively than any other group could. To check out what they have done or get involved with them, check out their home website here. Below is a video providing a brief explanation of how GIWA came to be.
Video Credit: https://www.youtube.com/watch?v=H85RhyCn_Ug&feature=youtu.be