How much water does it take to make one liter of milk?

Water scarcity and water pollution are increasingly critical global issues. Water scarcity is driven not only by shortages of water, but also by rendering water unusable through pollution. New Zealand is no exception to these ...

Race is on to save the Great Salt Lake: Will it be enough?

The largest natural lake west of the Mississippi is shrinking past its lowest levels in recorded history, raising fears about toxic dust, ecological collapse and economic consequences. But the Great Salt Lake may have some ...

In Peru, pre-Columbian canals offer hope against drought

In the mountains of western Peru, a farming community is restoring a network of stone canals built more than a millennium ago, hoping the pre-Columbian technology holds the solution to its water problems.

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