Why Are 96,000,000 Black Balls on This Reservoir?


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Video Description:

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.

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veritasium, black balls, balls, ball pit, shade, reservoir, black, plastic, water, LA, los angeles, LA reservoir, LADWP, bromate, bromide, water quality, algae, evaporation, water supply, chlorine, sunlight, science, physics, carcinogen, carcinogenic
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