(Live Science) Meteorologists first conceived of seeding clouds as a way to increase rainfall in 1946, working at General Electric's laboratories in Schenectady, New York. But in the nearly 60 years since then, it has remained unclear whether human attempts to make it snow actually work.
Now, the results of the most scientific study of cloud seeding done yet are in. Researchers found that seeding clouds with droplets of silver iodide does slightly increase precipitation, boosting levels by 5 to 15 percent. However, experts disagree about whether this small increase means cloud-seeding efforts should expand.
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