and carbon extracted from the atmosphere by plants and laid in...

and carbon extracted from the atmosphere by plants and laid in the ground over millions of years.... dug up nd released into the atmosphere over only a couple of hundred years.

so as you can see the mining of coal and other fossil fuels is turning the atmosphere into similar to the pre-carboniferous era, before plants and planktons came to absorb CO2.

this is what you don't understand.