From a distance, the reservoir appears topped by a flotilla of rubber duckies.
On closer inspection, the water’s surface is packed with thousands of free-floating, 13-inch plastic balls, clustered to form an undulating cover.
At Tze’elim reservoir in the Negev, Israeli startup Neotop tests new technology that reduces surface temperatures, algae and evaporation.
Developed by the Israeli startup Neotop (formerly known as Top-It-Up), the mass of balls serves as a floating cooling tower, reducing surface temperatures, algae and evaporation up to 95 percent. It’s one of many potential water-saving solutions to come out of Israel’s high-tech dream factory.
This could make a difference in California. With the state’s reservoirs at historic lows — the two biggest, Shasta Lake and Lake Oroville, both down 40 percent — every drop counts.
Living in a land of permanent water scarcity, Israelis grow up with a credo of water conservation. The country pioneered drip irrigation and wastewater recycling. As California bakes in its fourth year of exceptional drought — the worst stretch in 1,200 years — Israel has much to offer by way of remedies.
Sectors of California’s agriculture industry, such as grape growers, long ago took up Israeli-style drip irrigation. And this fall, the largest ocean desalination plant in the Western Hemisphere, a project designed and being built by IDE Technologies of Israel, is set to open near San Diego.
With the drought worsening, state water managers have been seeking Israeli expertise. On June 11, Israeli hydrologists and entrepreneurs will meet in Sacramento with state politicians, academics and other water experts for a daylong conference titled “Israel Water Technology: Opportunities for California.” Together they will explore ways to bring Israeli experience and know-how to California.
Noam Levy, for one, hopes Neotop has a future in the Golden State.
“We are just beginning commercialization of the project and manufacture in Israel,” said Levy, the company’s CEO. “We are aiming for the U.S. market, mainly California.”
Reservoir preservation is one piece of California’s complicated water puzzle. Aging infrastructure and an antiquated patchwork of water agencies make it difficult to reach consensus about how best to address the crisis.
Stakeholders include agriculture, industry, cities and Mother Nature herself, which depends on plentiful fresh water to maintain eco-balance.
Once abundant, water is hard to come by in the age of climate change. According to the California Department of Water Resources, 2012-2014 was the driest three-year period on record. Last month, the Sierra Nevada snowpack measured 5 percent of average, the lowest in history.
In January, Gov. Jerry Brown declared a drought state of emergency, with the State Water Resources Control Board ordering new restrictions on water use, including limiting outdoor watering to two days per week.
Then in April, Brown ordered mandatory 25 percent water reductions in cities and towns, and though those restrictions went into effect this month, so far compliance has been laughably low.
http://www.jweekly.com/article/full/74688/california-drought-what-would-israel-do/
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