Actually, if you swapped 'on' for 'by' (and cut 'US diminishment' etc.) you'd have a point there - Russian emissions per capita are among the world's highest and growing, while they decline in the rest of the north - most commentators don't notice as Russia has no NGOs left to shout about it.
(Note emissions fell since 1992 but from an even higher peak - while soviet industry produced that huge stockpile of missiles, tanks etc. now being used up). Also there are potentially huge climate feedbacks in Siberian forests and tundra, and we should be cooperating globally to help manage that. Maybe 'europe from lisbon to vladivostok' was a missed opportunity. I crossed siberia by train, helping local scientists attend COP3 in Japan, even studied many russian songs. Maybe one day we'll cooperate again. But now I and many others here think the only way to end these wars, is for russians to dump their crazy leadership which started them.