Artist's conception of a chain of desert lakes.
A plan to convert millions of square miles of earth's desert into inhabitable land is being developed by Shimizu Corporation of Japan. Called the “Aqua-Net,” the plan calls for a string of manmade lakes to be built across earth’s arid regions, giving rise to a network of new cities.
According to PhysOrg.com:
The idea involves the building of interconnected lakes in the desert. These 18-mile-diameter lakes would be connected by canals fed from the ocean. The lakes would include built islands that could serve as homes for cities teeming with people. Supposedly, this would work because water from the lake would cool the cities, making them livable. There would also be arable land, theoretically, after this cooling above the desert lake islands. The cities would be powered by satellite power stations, and by the sun.
Of course the plan is not without substantial challenges:
One of the biggest draw backs is that the lakes would be filled with seawater. While the salt water would provide the opportunities for water-based wildlife, and even for biomass development, it doesn't provide much opportunity for drinking. However, Shimizu plans that the some of the water would be desalinated, and thus made fit for human consumption and for irrigation of crops.
Shimizu is a large construction firm currently involved with a plan called the “Luna Ring” to build a wreath of solar cells around the moon to generate electricity and send it to earth via microwave transmission.
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