China is centrally controlled. There's no debate about climate change in this context. In the US everything is a debate. Every single thing. So we spend more time debating then getting things done.

Furthermore, this is a public discussion about climate change in China. The Chinese public ranks climate change as higher priority than in the US. There are several reasons for this, not all of which are top down propaganda. For example, the Chinese population has more recent, immediate, and extreme experience with the negative impacts of environmental disruption.

In the US compromise is different. Compromise is active corporate entities with zero interest in the environment trying to further their own self serving goals. It a standstill via debate. You can see why it's less effective. Additionally, because of freedom of the press propaganda, from both sides can influence public opinion which leads to division of opinion.

Well, yeah, China is more than 52 times the population of many other countries, so that's hardly surprising.

https://en.wikipedia.org/wiki/List_of_countries_by_greenhous...

From here it's easily seen that An individual in the US is on average one of the worst offenders while an individual from China is doing extremely well.

It begs the question how good is democracy when huge powerful corporate entities with only business interests in mind are able to participate in a democracy? There's no clear answer here.