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There's something invisible that can put us in an early grave. And I’m not talking about sentient AI, but something much more ubiquitous and real. While AI doomers predict the existential risk that artificial intelligence poses to humanity, air pollution—specifically, ultrafine particulate matter, PM 2.5 —has been an efficient killer for decades. Many people don't realize there are volumes of scientific evidence that link cardiovascular disease, diabetes, and brain damage to the growing list of bleak health consequences of bad air.

According to the World Health Organization , air pollution ca

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