June 25, 2023, 09:35 AM
goose5John Kerry Formally Challenged for Stating (Twice) That Greenhouse Gas Emissions Kill 15 Million People/Year
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, June 25, 2023 10:36 AM