A solution to the upcoming fresh water crisis: By Kevin Munro
It's becoming very likely that in the 21st century, more wars will be fought over access to fresh water than over oil. Yet we live on a planet that is over 70% covered with water and abundant solar energy. This solution uses solar energy to purify sea water with the use of inexpensive polycarbonate lenses to boil water and generate steam. The steam then produces electricity to power a generator to run pumps for reverse osmosis filters. These portable, yet scalable solar-powered water purifiers can be used by towns, counties, states and government agencies worldwide for emergency backup use or in impoverished areas to provide electricity and fresh water. On a large scale, a grid of these units can provide water for agriculture and even convert large tracts of land (such as coastal Africa and the Middle East) from arid to fertile.