Dear Leftist morons:
Human exhale CO2. Carbon Dioxide. Plants absorb it, use the CARBON to make new cells (during photosynthesis), then "discharge" the unneeded oxygen. Which humans breathe in. When the plant dies or burned, the carbon is released into the soil or air as black smoke where it'll combine with Oxygen or whatever else.
Because 3 morons at the UN wanted that fat research money, now they have the sheep thinking carbon is bad. Carbon is not a pollutant. Carbon is not a pollutant. Carbon is not a pollutant.