In the Namib desert where rain is rare but fog common, a beetle survives by condensing water on its back until drops roll down into the insect’s mouth. Now this principle has been magnified onto a grand scale, providing a possible solution to the desperate lack of water that plagues the populations of many of the world’s dry regions.

There is no lack of solutions being experimented with for water shortages. Wells, recycling techniques and methods for cleaning poisoned water have all attracted considerable efforts, particularly since the Bill and Melinda Gates foundation have made the issue a priority for their considerable resources.

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