As Cape Town, South Africa nears “Day Zero” when authorities turn off the taps — expected in the first half of April 2018 — Senior Sustainability Scientist Dave White expresses the pressing need to adapt urban water systems to stresses like climate change.
White, who directs ASU's Decision Center for a Desert City, says that the causes of Cape Town's water crisis are familiar to water managers in water-scarce cities around the world – like Phoenix. These include limited supplies, dramatic population growth, aging and inefficient infrastructure, persistent drought, inadequate reservoir storage and climate change impacts.
Luckily, White provides a number of ways to improve water resilience. Among them are greater public engagement in water management planning and decision making, public and private investment in technology and infrastructure, rainwater harvesting, enhanced recycling and reuse of wastewater, cross-sector conservation and demand management, and development of new renewable supplies where feasible.