this post was submitted on 20 May 2024
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It is unclear if seeding actually has a large enough impact on hail formation.
Insurance companies aren’t known to just spend money for no reason, it’s adding nucleation points, with less nucleation points the hail can build up larger before it break out of the storm cloud.
Sure they can’t prove it’s doing anything, but more nucleation points can’t make things worse and they know more nucleation points mean smaller potential hail.
It’s usually politics at play or environmentalists screaming about chemicals in the clouds that are the hurdles for something like this.
One of the biggest problems in research is that there is no control: We don't know what would have happend without the seeding. So we can only compare random storms that are seeded and not. Here the differences are very small (i.e. statistically insignificant). But that doesn't mean it has no effect.
Also I think we should be careful when using such things at large scale, as we just don't know the outcome. In small quantities it is however no hazard at all.