Test of Planet-Cooling Scheme Could Start in 2022
Cars That Think
DECEMBER 19, 2021
Up there, 10 to 50 kilometers above the Earth’s surface, ozone molecules absorb the sun’s ultraviolet light, protecting life far below. Eventually, they’ll add equipment to spray tiny aerosol particles of calcium carbonate, the compound found in limestone, blackboard chalk, and Tums antacids. cancel the launch.
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