Call me stupid but I was told that while yes, Trees does absorb CO2 form the air and give Oxygen back during daytime. There’s also a reason to not have tree in your enclosed bedroom during night as it release all the CO2 absorbed.
So my question was that people are saying to plant tree to help purify the air in streets, city, or any dense population location. If the statement in first paragraph’s correct. wouldn’t that just result in that the trees would give the o2 and purify the air during day time and just flood the street with co2 during night? I’m confused…
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They don’t happen at the same rate.
Trees take in oxygen and give out CO2 nearly all the time. (not only at night). During the day it absorbs more CO2 than it releases so it is net positive for oxygen. At night, without sun, the plants do not absorb CO2 and therefore it is net positive for CO2.
For the tree to grow (ie to secure carbon) it will absorb far more CO2 than it releases.
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