LA uses balls to fight water shortage | Emergency Preparedness | Forums

interesting idea, wonder how well it will work

Water workers in Los Angeles have released 20,000 shade balls into the city's reservoir to improve its water quality.

The black, 4in plastic balls are weighted down with water inside, which keeps them in place to block the sunlight from the water's surface.

The balls are aimed at protecting the water from dust, rain, wildlife and chemical reactions caused by the sun. They should also stop the reservoir's water from evaporating.

The $34.5m project involves the release of 96 million balls at the 175-acre reservoir in Sylmar. 

more http://news.sky.com/.....ht-drought