The country still accounts for about 30 percent of climate-warming gases, with its vast industrial base and coal fleet responsible for 90 percent of new emissions globally since 2015.

How does this stat work? This is the actual report they cite which is two links deep. On page 18 there are stats for what they call CO2 equivalent emissions. According to change China's share is about 30%, both in 2024 and cumulatively since 2015.

What emissions are they talking about here 90% of which they credit to China? It's not coal consumption because that is about 55% both for 2024 and cumulatively since 2015.