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The Thomson Dam, Melbourne’s largest water storage, dropped to only 16% of capacity in the last big drought. Melbourne Water/flickr

This is what Australia’s growing cities need to do to avoid running dry

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.
Under the proposal, irrigators would have to submit a statement that tallies with aerial images of their water use. AAP Image/Cubbie Group

‘Tax returns for water’: satellite-audited statements can save the Murray-Darling

Allegations of water theft have thrown the Murray-Darling Basin Plan into crisis. The solution could involve users declaring their annual water use, subject to random audits - like a tax return.
Lake Powell, photographed April 12, 2017. The white ‘bathtub ring’ at the cliff base indicates how much higher the lake reached at its peak, nearly 100 feet above the current level. Patti Weeks

Climate change is shrinking the Colorado River

The Colorado River supplies water to millions of people and irrigates thousands of miles of farmland. New research warns that climate change is likely to magnify droughts in the Colorado Basin.

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