IUCN's Water Policy and Sustainability Adviser, Isabelle Fauconnier, reflects on the 7th World Water Forum and how the global water community of practice will tackle the challenges of water management in the coming years. She says that IUCN and others have made the case that nature is a solution for water, and not just a competing use for water. Ecosystems, as natural infrastructure, perform vital functions like water storage by forest soils and wetlands, soil nutrient cycling for food production, water purification, and more. In turn, it is healthy ecosystems that provide a key input, water, for the production of food and energy, and for human consumption. So if ecosystem functions are depleted, energy and food production and basic human water needs will suffer considerable losses.