L.A. has come up with a new design to save water moving forward during California’s drought. The main reservoir in Los Angeles has been turned into a giant ball pit. How will this help exactly? Well, the “shade balls” that cover the reservoir are made from black polyethylene and coated with an ultraviolet light-resistant material. They are also filled with water so that they don’t get swept away by wind. The 4-inch balls are supposed to last for 25 years without degradation.
Los Angeles Mayor Eric Garcetti helped to disperse some of the 96 million balls across the 175-acre reservoir as a sign that L.A. is working to save water during the drought. The reservoir, which is located in Sylmar, holds about 3.3 billion gallons, which would supply the city with drinking water for up to three weeks if need be.
“The balls cost 36 cents each, for a total of $34.5 million. The utility has been testing the concept since 2008, reporting that shade balls reduce evaporation by 85 to 90 percent. That should equate to saving nearly 300 million gallons a year, enough to provide drinking water for 8,100 people. The balls also inhibit microorganism growth, reducing the treatment the water must undergo through other means, which could save the city $250 million over time. The city says the balls will shade and cool the water, reducing evaporation from the reservoir and making it less susceptible to algae, bacterial growth, and chemical reactions that can produce harmful substances.” (National Geographic)
These shade balls will end up helping Los Angeles to cut its water use by 15 percent over a two-year period.
Why Did L.A. Drop 96 Million ‘Shade Balls’ Into Its Water?. National Geographic. August 12, 2015. http://news.nationalgeographic.com/2015/08/150812-shade-balls-los-angeles-California-drought-water-environment/
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Sustainability is becoming more and more popular in our culture today. The term sustainability as defined by the Bruntland Report in 1987 (the first definition) is, “Development that meets the needs of the present without compromising the ability of future generations to meet their own needs.” Since 1987, we have developed far from just having a definition of sustainability. We have the resources and technology to measure and predict our use of nonrenewable resources. We also have the means to understand that humans are destroying our Earth at a rate so quickly that it cannot keep up or even recover.
Each human creates an ecological footprint that determines how our waste and energy use impacts the earth. There are so many ways that humans create their footprint without even recognizing it; by eating more meat, by buying new clothes regularly, by owning a home that has running water… these are just a few ways that we impact the Earth. If you’d like to see your individual impact on the Earth by figuring out your ecological footprint, check out the Global Footprint Network’s footprint calculator at http://www.footprintnetwork.org/en/index.php/GFN/page/calculators/.
Here are some tips to reducing your ecological footprint:
1) Eat less meat and buy more produce from local farmers
2) Use less water in your home and buy water-saving products
3) Use more public transportation and carpool often
4) Dispose of trash properly and recycle all reusable materials
5) Look into supporting your home with renewable energy like solar power
One way that you can reduce your water use is to buy a whole-house filtration system that doesn’t waste water. Filtercon Technologies has created a revolutionary system that reuses backwash to recycle water. Check it out at http://www.filtercon.com or call 800-550-1995 for more information.
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