Seeing CO2
Experts tell us that life can’t survive CO2 levels over 400 PPM, which makes train travel rough at 2,500 PPM.
Greta Thunberg can see CO2, which must make it difficult to also see what she is eating on the train.
“My daughter can see CO2 with the naked eye” – Afrinik
via Real Climate Science
November 22, 2019 at 06:02AM
Iowa Climate Science Education 