Mexico City has a number of water security issues: overexploitation of aquifers, inefficiencies due to non-payment of bills and water leakage, as well as inadequate wastewater treatment. The central aim of Agua Capital is to deliver water security for Mexico city and the surrounding area. Agua Capital is one of 23 Water Funds in 8 countries supported by the Latin American Alliance of Water Funds. The Water Funds were created through an agreement between the Inter-American Development Bank (IDB), the FEMSA Foundation, the Global Environment Facility (GEF) and The Nature Conservancy (TNC). Water funds as a tool in general are used to invest in: green infrastructure and NBS to improve the quality and flow of water; Payments for Ecosystem Services; community projects and promoting a culture of caring for water; financial and technical support for environmentally friendly agricultural practices.