It was the cry that was heard around the internet. For a few days last August, the video of L.A. Mayor Eric Garcetti and staff of Los Angeles Department of Water and Power sending a cascade of 4” ...
Los Angeles has coated its reservoirs in millions of black plastic balls. But why are they a heat-absorbing black instead of light-reflecting white? Because they’re shade balls, and their purpose has ...
" Shade ball" is a small plastic sphere used to prevent reservoir water evaporation. It is a shade ball that is used for water saving, but in fact it is pointed out that it may consume more water than ...
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