Parched soldiers could one day drink from the exhaust pipes of their jeeps, trucks and tanks, thanks to a gadget being developed by a British defence lab. It harvests water and then filters it until it is drinkable.

The idea comes from Mel Scott and his team at the defence research company Qinetiq in Gosport, Hampshire. Instead of arranging for thousands of bottles of water to be supplied in areas where the pumping, treatment and supply of water has been disrupted by conflict or drought, troops will produce their own water as they motor around.


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