-Andy, while I agree with you, I bite my lip when CO2 is called a "pollutant"
CO2 is a necessary compound in, with a few exceptions, every organic life form on this planet.
Also, cutting AND REPLANTING trees could actually be better for CO2 absorption than leaving tress alone. Now, I'm not condoning chopping every tree you see down. But trees are a carbon sink, when growing, then use much more carbon than a full grown tree. Think of humans, children eat more than a full grown adult because they are adding to their mass. Trees, when full grown, uptake CO2 much slower than a sapling.
I'm sure there are many discrepancies, but the general idea isn't wrong. Once again, this isn't an excuse to go chop down trees or clear cut, but the idea that we need to stop cutting down ANY trees to prevent global warming isn't the best.