All that carbon doesn't come from the ground.
I remember those false headlines, opposite of current false headlines about global warming.
There's a current video on YouTube where a guy randomly asks people - where do trees get their materials to grow. Most think it is from the ground. Nope, it is from CO2 in the atmosphere. As far back as a couple hundred years ago, scientists measured the mass of a container before growing a tree, and measured it after the tree grew. Proved that the extra mass was extracted from the atmosphere.
Plants need CO2 in order to grow!
All that carbon doesn't come from the ground.