“...carbon dioxide, the chief greenhouse gas.”
A LIE! The chief “greenhouse gas” is H2O! The difference is so extreme that the so-called father of global warming stated something to the effect that you would increase global temperatures more by spitting than by driving your car for a year.
If water vapor condenses, falls as rain, absorbed by the soil, taken in by a plant's roots to combine with the carbon the plant took from the atmosphere to create things like cellulose and lignin, which if burned/decomposed, release CO2 and water vapor to the atmosphere.
It could be a plant that grew in the spring then burned in the summer or a plant that grew in a far back geologic period, was stored in the earth, mined, then burned to generate electricity.