3 ms·
Yes. It's down 4ppm / 0.00002% per year in the air but reserves are so huge it's not a concern. (I figured some would like a quick summary, but read the artic
by jraph 3y ago
Yes.
It's down 4ppm / 0.00002% per year in the air but reserves are so huge it's not a concern.
(I figured some would like a quick summary, but read the article anyway. I know nothing about the topic)
(I will remember from this article that a human needs the amount of oxygen produced by 7 huge trees)
- rolph 3y agothe article makes a good start but has some chinques. example is OSHA requirement for 19.5% Oxygen in a safe atmosphere.