Watching a child grow is seeing carbon dioxide in action. Plants turn CO2 into the food we eat to live and grow on. “You can’t live on air” is a common saying but that is just what we do; we live on air and water.
Few people appreciate this amazing fact, that CO2 in the air is the global food supply. Our meat, fruit and veggies, also our candy and ice cream, milk and wine, are built almost entirely from carbon dioxide and water. Everything we eat and drink.
There is also a bit of nitrogen, to make protein, plus a bunch of trace minerals and vitamins, but you and I are basically composed of processed H2O and CO2.