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Environmental Impact of Cloud Seeding

The environmental impact of cloud seeding is being monitored and studied.

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Jan 28, 2026
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Which U.S. states currently conduct cloud seeding programs and what oversight exists for them?

is actively practiced in at least nine states — , , , , , , , and — and is largely implemented and funded at local or state levels rather than by a unified federal program . Oversight is a patchwork o...

Feb 6, 2026

Which U.S. states currently operate active cloud‑seeding programs and how are they funded?

states reported active cloud‑seeding programs as of mid‑2024: , , , , , , , and , according to federal reporting summarized by and the . a patchwork of state appropriations, local water‑district payme...

Feb 4, 2026

What are the documented environmental and health monitoring results from state cloud‑seeding programs (e.g., silver iodide measurements) and how do states publish that data?

Existing reviews and state programs report minimal measured environmental or human-health impacts from at current operational levels, but they also note limited, uneven monitoring and reporting that l...