One UN study estimates 1.8 billion people will face extreme water shortage by 2025; the US government projects 36 states could face a similar fate by 2013. Doug Cantor, in Esquire, examines potential shortage solutions:
- PlayPump: A pump attached to a children’s merry-go-round extracts water from the ground as it spins. Expected to provide water for 10 million people by 2010.
- Windmill power: A specialized mechanism extracts 50 to 130 gallons of water daily from the air.
- Ocean power: California firm’s new desalination technology allows pumping without choking the energy grid.
For the rest, drill here: