TIL about Pseudomonas syringae, a plant pathogen capable of nucleating ice on plants which is responsible for the formation of snow and hailstorms that can be used used to make artificial snow.

Read more: https://asm.org/Articles/2019/January/Snow-Is-Coming-Whats-That-Have-to-Do-with-Microbe

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  1. Something I found interesting in the article, if there are too many nucleation points then none of them can grow big enough to form rain. So maybe that’s why cloud seeding doesn’t always work, they have to get the concentration right or if they add too much or too little it won’t work. Very interesting.

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