It's mentioned at the end of the article but it's not the main message. The reason it's mentioned is to give the argument why China will have to reduce their ow

It's mentioned at the end of the article but it's not the main message. The reason it's mentioned is to give the argument why China will have to reduce their own emissions, no matter what other countries do. Then it concludes that Trump should understand the same that China has to understand: "Decoupling emissions from economic growth thus helps both people and planet."