The per capita trend is even more troubling with US down ~20% from peak and China on a very strong upward trend.
We can point fingers all we want to developing nations but they are only the main contributors RIGHT NOW, historically the US and EU have much more to blame. But blame alone right now will not solve anything.
So, it's more priority's vs need.
We should be taking a leading role. As we drive the costs lower, others will follow. China already uses more solar and wind power.
China & India have had very little, if any, environmental protection policies or fair labour laws for a long time, so manufacturing was sent overseas just so big corporations could make an extra dollar. Then what? Western countries turn around and try say they're the problem for this mess. It's not right.
Americans were happy to consume their goods for years without putting much thought into the environmental impact large scale consumerism was having.
You're right it seems China & India are at least trying to mitigate the damage done, and really making a mockery of the USA while they're at it. Especially considering so much data about climate change is coming out of NASA.