Do they have plans to remove Methane and NOx.
Methane emissions have increased and we are seeing weather changes. One shouldn't forget CO2 is also needed in the atmosphere.
Methane goes away pretty quickly on its own, so that's less pressing. CO2 is needed in the atmosphere, but not nearly as much as we have. Pre-industrial levels were 30% lower than current levels.
You don't need to remove those. You just need to make sure they get them wet, so entropy can follow its inexorable path.