Reducing losses, using more efficient technologies and recycling are all part of the solution, but applying the user pays principle to all types of users and an integrated approach to the management of freshwater resources by river basin are essential elements of sustainable management and hence of green growth policies. Social aspects, such as the affordability of the water bill for low income households also need to be taken into account. Agenda 21 (UNCED, Rio de Janeiro, 1992) explicitly considered the protection and preservation of freshwater resources.