Even if the western nations pollute less, developing nations will still pollute a lot more and will get us to tipping points anyway, albeit perhaps slightly slower.
Ehh, it's worth noting that developing nations tend to pollute a lot less per capita. And as they develop they can transition to cleaner forms of energy, as they gain the economic ability to do so.
Pointing at developing nations is a convenient excuse for developed nations to avoid taking the actions we need to take.