The activity of live bacteria in clouds


Ars Technica reports that, “The clouds are alive as microbes fly unfriendly skies.”   Scott K. Johnson writes:

“On a lazy summer day, you might look for animal shapes in the clouds, but you know they’re not real. There’s nothing alive up there but the occasional flock of airline passengers, right? Well, if you’ve ever had a microbiologist friend remark that a cloud reminded them of a bacterium, they were more right than you might have realized.”

The author draws on the latest studies of water samples, “From high atop Puy de Dôme, a volcanic peak in central France,” along with past research that found that bacteria, “In cloud water are capable of taking part in that chemistry, despite the cold temperatures and ultraviolet radiation.”


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