calling Carbon "pollution" is a sure sign the federal government knows not of what it speaks.  If for no other reason than elemental Carbon is not remotely the same thing as Carbon Dioxide CO2 or Methane CH4. That Carbon is the foundation element for the entirety of plant and animal life on this planet has doubtless escaped them (save for some sulphur based micro-organsims) 

One clever poster on this thread has even suggested this a tax to "protect Oxygen" ignoring that all Oxygen on this planet is derived from photosynthesis, the process whereby atmospheric CO2 is rendered via sunlight energy into carbohydrates by green plants, algae etc, thus releasing Oxygen as a byproduct. 

Ignorance is bliss