4 ms·
There isn't less O2. Even if all plants on earth disappeared (and animals somehow survived that), it would take millions of years before there's any measurable
by Filligree 2y ago
There isn't less O2. Even if all plants on earth disappeared (and animals somehow survived that), it would take millions of years before there's any measurable impact on O2 concentrations.
Moreover, there's no physiological impact whatsoever until you drop several percent.
- hartator 2y agoO2 does decrease and is measurable: https://www.oxygenlevels.org/ https://www.oxygenlevels.org/ I think this is a more marketable concern than CO2 as without O2 most know that you can’t live.
- nradov 2y agoThose are meaningless changes. It's less than the effect of walking up a small hill in terms of inspired oxygen partial pressure.