This claim is not true. I mean, it's so easy to go and read withouthotair.com and see how this stuff can be calculated on the back of an envelope. Then you can

This claim is not true. I mean, it's so easy to go and read withouthotair.com and see how this stuff can be calculated on the back of an envelope. Then you can try a little bit harder and do 2nd, 3rd and other order effects and get a bit more precise estimates. To say that a 2 ton car moving represents a tiny part of CO2 emissions and that breathing is killing the planet is ridiculous.