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Fine Atmospheric Particles: Do we need to worry about them??

Fine Atmospheric Particles: Do we need to worry about them??. Almost all combustion leads to the formation of fine particles. Mastery of Fire. 400,000 years ago in Europe 100,000 years ago in Africa M. N. Cohne, 1977. Ultimately we learned how to use fire to clear land for crops.

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Fine Atmospheric Particles: Do we need to worry about them??