Water is increasingly becoming scarce as the climate changes. There are four changes that cities can make to adapt to water scarcity.
Australian cities have turned to some very costly solutions when water is scarce. But as the world's second-highest users of water per person, more efficient use and recycling are key.
States, including Colorado, restrict the use of rain barrels. A water law scholar says a better way to conserve is reduce waste from big – and powerful – water users.
Geosciences can be a valuable tool in the fight to provide Sub-Saharan Africa with safe drinking water.
Built-up urban environments transform the resource of rainwater into wasted runoff. Low Impact Development mimics nature to help get stormwater into the natural water system.