@menghuiying
@oproo12.base.eth Why are trees producing less oxygen now, and what impact does deforestation have on global oxygen levels?
You are completely deluded by Environmentalist Wackos!
Forest land area is up by over 300%. The photosynthesis activity is up by area, at nearly 900% of the level it was. That is an 3600% rise in Oxygen output! Get your head out of your butt. Nothing in your question has any reality.
Deforestation stopped on Earth in 1970! That was 55 years ago! There is a pretty good chance that it has never existed during your lifetime.
If we converted 100% of the CO2 on Earth to carbon and oxygen, you couldn’t even tell the difference. CO2 is a TRACE GAS.