It works by making the most out of a storm. “It’s done by inserting silver iodine into the atmosphere into those storm events into the clouds, and that silver iodine helps increase the formation of ice crystals,” said Wolff. . And that helps make it rain, in fact Wolff added that it has the potential to squeeze 5 to 15% more water out of storms.
Link: Cloud seeding is becoming a more important resource amid drought
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