I see lots of liberals online insisting that the US pulling out of the Paris accord will make everyone else, including China, abandon their climate initiatives.
If any nation does so then - just like the US - they weren’t truly committed in the first place, and they would have quietly rolled back their climate goals like the US has been doing already anyway.
It may not be this particular case, but I remember looking into something similar before where an oil and gas company claimed a similar reduction in emissions at one of their plants, but the fine print made clear that the number came from a device installed on only one of several exhaust towers that was only able to operate for short periods of time, and was removed shortly after getting the publicity because it was considered too expensive to maintain.