In China there are hundreds (thousands?) of coal mine fires. (Poor technology, no regard to safety, etc.) These fires, once started, are impossible to extinguish.
The CO2 from coal mine fires in China is more than all of the CO2 output of cars and trucks in the USA.
(Of course, that argument only works with those that believe that CO2 causes global warming.)
Do you know what Red China said to the global warming crew about their mine fires, “Mine your own business”. /sarc
A lousy joke but what do you want at this time of night?