Of course, China has 5 times more people than the US, so they get a little bit of leeway. But they are close, and their emissions are growing.
That said, yes, they are investing more than anybody else. And they are improving the technology we need more than anybody else. People talking about military intervention are full of shit, but we could use some diplomatic collaboration.
I know nothing about it. I have read comments on this very comments section, with references, that say China's emissions are not growing. This is what makes this subject so hard for the average numbskull like me, so much misinformation.
The discussion is about what happened last year. We don't have the last year's data assembled yet.
There's a real possibility it changed.
https://ourworldindata.org/grapher/cumulative-co2-emissions-...
China is in the middle of a massive expansion in wind, solar, and electric vehicles. The US is burning even more coal to support AI, and has gutted much of its federal emission reduction efforts.