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Author Archives: Derek Muller, Veritasium

Posted inCalifornia

Why Are 96,000,000 Black Balls on This Los Angeles Reservoir? (VIDEO)

by Derek Muller, Veritasium May 14, 2019

May 14, 2019 – I took a boat through 96 million black plastic balls on the Los Angeles reservoir to find out why they’re there. The first time I heard about shade balls the claim was they reduce evaporation. But it turns out this isn’t the reason they were introduced. Huge thanks to LADWP for […]

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