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If Greta Thunberg can see the 400 PPM of CO2 in the air, then the 4% (40,000 PPM) of CO2 in her exhaled breath must be opaque and render her incapable of seeing beyond her nose.
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[–] nosam 0 points 1 point 1 point (+1|-0) ago
If Greta Thunberg can see the 400 PPM of CO2 in the air, then the 4% (40,000 PPM) of CO2 in her exhaled breath must be opaque and render her incapable of seeing beyond her nose.