The ways we use water, and waste it, doesn’t make a lot of sense. Developed countries treat too much water, using potable water for everything, even irrigation and industry. And all over the world, in both developed and developing nations, wastewater goes wasted. As the world’s population rises and freshwater supplies dwindle, large-scale desalination plants and other projects may help meet the demand. But in the meantime, simpler measures can ease shortages. Take this idea for treating graywater with an artificial wetland, for example.

Here, the World Bank’s infographic has laid out the problems and some potential solutions to help us use water wisely, save money, energy and, yes, water.

why waste water

Larger version | Source (World Bank)

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