UNICEF is at the forefront of exploring innovative ways to access water, and building climate-resistant infrastructure. WASH is the collective term for Water, Sanitation, and Hygiene. Due to their interdependent nature, these three core issues are grouped together to represent a growing sector. While each a separate field of work, each is dependent on the presence of the other. For example, without toilets, water sources become contaminated; without clean water, basic hygiene practices are not possible.