Excellent news. If slightly misleading in its subtle suggestion that this is somehow surprising. China's emissions have risen sharply in recent decades, yes, but that is because China has a lot of people and it has been amazingly successful at getting them out of poverty. China's per-capita GDP and per-capita emissions are both still far below the USA's, for example (around 40% lower).
Moreover, China has pioneered the mass roll-out of the technologies that might finally address the climate crisis, especially solar energy, batteries and EVs (now well over 40% of new vehicles there and going up like a rocket). China is the only big country that's taking all this seriously. Europe is dragging its feet by comparison, and the USA is literally still voting for denialists. It's an awkward fact because China has lots of faults and none of us would want to live there, but without China the whole world would be royally screwed right now.