The US's green house emissions per capita are twice as big as China's[1]. Considering China's population is about 4 times bigger it puts the absolute pollution at about 1:2. Chinese percent of renewables is 25% compared to the US's 15%[2]. What exactly do you want from China? I'm not even gonna address the war idea...

[1]https://en.m.wikipedia.org/wiki/List_of_countries_by_greenho... [2]https://en.m.wikipedia.org/wiki/List_of_countries_by_renewab...