[Berazu]

You are simply breathing out CO2 that is already in the air, what you might want to point at instead is people farting.

[nabla9]

No.

People breathe out CO2 that is product of their own metabolism.

Oxygen + carbohydrates in, CO2 out.

[out-of-ideas]

reminds me of this article (posted a few times): https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...

you missed a great deal of opportunity telling people they are wrong