"Die Grünen" are busy now to manage the Multi-Kulti overflow in the "Heimat" right now .... and they are pacifists.
No weapon for China to kill ShuBen for NOx pollution!

But serious:
As I read the combustion chamber temperature will raise a bit. I assume that is not critical. (?)
... and for my little NOx sometimes .... when I see all these new Ford F150, Toyota Tundra, 5.7L Hemi's and the Diesel 3 wheeler transporters that look like they are set on fire instead of moving forward .... THEN -> Fu... it!