Invest in developing techniques to recycle water so that nothing is wasted.

FORBES: Global Warming And Africa's Future: Part 2

One of the key technologies that is needed is a means to recycle water from astronauts back into a drinkable form, along with radiation shielding and developing ways of working and living in space for prolonged periods.

BBC: Chris Hadfield says Nasa's job is not to 'titillate'

Among these figure water-harvesting technologies and drip irrigation, as well as technologies that recycle grey water in peri-urban agriculture.

UNESCO: World Water Assessment Programme (WWAP)

But what's novel about the CEAC design is that it incorporates a bio-regenerative life-support system -- the kind of technology that could one day not only feed an outpost on the moon or Mars, but also provide it with oxygen and recycle its water.

CNN: To boldly grow where no one has grown before

Local actions to recycle, reuse and conserve water are the basis of sustainable water management and should not be underestimated.

UNESCO: MEDIA SERVICES

This is in addition to other water that production facilities typically recycle.

FORBES: Biofuels: Fields Of Pipedreams

Organizers have also implemented a Wimbledon-style scheme to recycle tickets at hockey, basketball, handball and water polo double-bills, where some fans have been leaving after watching their team.

CNN: SHARE THIS

Water purification plants (especially in large cities which recycle their sewage waste right back into the drinking supply) will hopefully get prioritized for energy allocations when rationing starts.

FORBES: Peak Oil and ERoEI: Still Nonsense