The article compares how different countries use energy and focuses on China and its progress in using cleaner energy sources. It looks at factors like how much clean energy each country uses and how efficiently they use fossil fuels. The study found that China is doing well compared to other big energy-consuming countries. China uses a good amount of clean energy in its overall energy mix and is more efficient in generating power. However, it still has room to improve energy productivity. China's challenge is to speed up its shift to cleaner energy to meet its goals for reducing carbon emissions, especially with the tight timeline. Additionally, China needs to work on optimizing its industrial structure to use energy more efficiently.