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John Kerry Formally Challenged for Stating (Twice) That Greenhouse Gas Emissions Kill 15 Million People/Year Login/Join 
goose5
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40,000 ppm in human exhaled breath. Perhaps Kerry needs to shut his own mouth for the good of the planet.

quote:
The concentration of carbon dioxide in outdoor air is approximately 400 parts per million (ppm) versus approximately 40,000 ppm in exhaled breath.4


https://www.ncbi.nlm.nih.gov/p...quately%20ventilated.

This message has been edited. Last edited by: goose5,


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OH, Bonnie McMurray!
 
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