China's emissions are continuing to climb sharply:

https://ourworldindata.org/explorers/co2?country=CHN~USA~IND...

The New Scientist article is terribly misleading. It suggests China's emissions have peaked because of a few months of reported stable numbers. What they don't tell you is that such periods have happened many times before. Between 2014-2016 Chinese emissions were stable or even fell slightly, according to their not very reliable data. Then it started climbing strongly again, even as US emissions dropped by a billion tonnes/year between 2008-2023.

So there's no evidence China is turning anything around or is on track to decline. You can't extrapolate a few months out to decades in the future, and the New Scientist should know that.

The analysis in New Scientist isn't based historical trends. It's a causal analysis based on the rapid deployment of new low-carbon generation on China's grid, which is being deployed at rates higher than expected demand. Of course you could be right -- maybe forward demand will be much higher than anticipated, or maybe all of those solar panels will turn out not to be plugged in or something. But you need to make a stronger argument for this than one that just casually glances at a historical time series.