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Cloud-Seeding Called into Doubt
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Cloud-Seeding Called into Doubt

Science

Cloud-Seeding Called into Doubt

Cloud-Seeding Called into Doubt
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  • <iframe src="https://www.npr.org/player/embed/1464584/1464585" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

A new study says there is no evidence that the decades-long practice of cloud seeding works. The National Academy of Sciences report says it's hard to prove if sprinkling clouds with silver iodide crystals helps produce rain because it's hard to tell what would have happened if the clouds hadn't been seeded. NPR's Richard Harris reports.

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