*Energies* **2019**, *12*, 699

We consider that reducing the non-energy input should be taken seriously. Metallurgy products' utilization in construction, metallurgy, and coal mining; chemical industry products' utilization in the chemical industry; and electronic equipment products' utilization in electronic equipment should be given priority attention in order to save energy indirectly.

### *4.3. Analysis Combining the Present and Previous Studies*

We collected five seminal peer-reviewed articles [12–14,22,52] relevant to our research, and classified the driving forces behind China's energy-use change into a production technology effect, and a final demand effect. We computed the "average" decomposition effects of different studies in the same period, and Figure 9 shows the percentage contribution of each driving factor to China's energy-use change during the specific five-year period. Importantly, we found that the energy saving effect of the production technology was weaker between 2002 and 2012 than between 1981 and 2002. If the production technology effect becomes smaller over time, then the climate mitigation goal of China will probably not be achieved because of the expanding final demand of goods and services in China (see the larger final demand effects in Figure 9).

**Figure 9.** Energy consumption change from 1981 to 2012.
