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2

Do they not increase the CO2 proportion? No, because the CO2 they emit came from the atmosphere to begin with. And the carbon they don't release as CO2 stays as carbon compounds that make up the plant. The issue with CO2 is not plants taking CO2 from the air and re-releasing it. That doesn't cause a steady increase in atmospheric CO2. Taking CO2 that ...


0

Plants start to grow first, from tiny size (from seed in higher plants), and from there, any size in later stages they achieve to have, they achieve it only by first absorbing all the Carbon they need, from air first. So huge part of plant's later dried weight is actually made from carbon. And all that carbon was incorporated into it's body through ...


4

There are two factors here. First is that you have to look at the plant's net production over time. Say for instance (I'm just making up numbers here) that during the day the plant takes in 88 g of CO2 and uses photosynthesis to convert it to 64 g of O2 that's released into the air, and 24 g of C that is incorporated into the plant. Then during the night ...


3

The tag you used on the question shows you know about photosynthesis, but it seems you don't fully recognize its significance. Yes, plants use oxygen and release CO2 all the time for energy use, but they absorb much more CO2 (and release much more O2) while storing energy during the daytime than that 24-hour energy usage undoes. While plants release CO2 as ...


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