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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The carbon that is needed for a tree to grow is from co2 and converted to useful carbon via photosynthesis during the day. Without trapping and using co2 a tree wouldn’t grow. Yes they put some back into the atmosphere at night as part of other metabolic pathways but it’s not a net zero exchange.
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