Trees absorb carbon dioxide and produce oxygen through photosynthesis. The only time trees release carbon dioxide is when they are burnt!
You are indeed correct......... I got things mixed up as I was typing in a hurry and got scrambled. At any rate the point is that trees, humans, and lots of other living things would not be alive if it were not for carbon dioxide being present. They want to tell us that the carbon dioxide which we depend on is polluting the atmosphere. I think not. I truly do understand how photosynthesis works but thanks for spotting my error in my hurried thoughts.