What’s amazing to me is why the Chinese think this opinion is viable.
It's quite simple. On a per capita basis, Chinese emissinos is still lower than the developed nations. Significantly lower.
Compare emissions of the US with Britain. 5.8 billion tons/yr (US) vs 600 million tons/yr (Britain). The British should be critical of America of its green house gases.
Yet at 600 million tons/yr for Britain, it is still higher than China's 6.2 billion tons/yr when measured on a per capita basis. With a population of 60 million in Britain and 1.3 billion in China, that works out to about 10 tons/yr per person in Britain and less than 5 tons/yr per person in China. America's is over 20 tons/yr per person.
So yes, China has a right to be critical of the developed nations and to deflect the burden back onto them.