Saving water, one black ball at a time.
This interesting photo was taken in Los Angeles, California. The Department of Power of Los Angeles is attempting to protect the precious Ivanhoe water reservoir from evaporation by the sun with these tiny, 4-inch balls. The balls also protect the water from being contaminated by carcinogen bromate, which forms when sunlight mixes with the bromide and chlorine in the reservoir water. The plan attempts to install 400,000 of these water-protecting balls at a time, for an eventual total of 3 million, to protect the 7 acre reservoir.
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