Editorial: Sustainable Energy Systems With Policies in China

College of Economic and Management, South China Agricultural University, Guangzhou, China, Research Center for Green Development of Agriculture, South China Agricultural University, Guangzhou, China, School of Finance, Guangdong University Finance & Economics, Guangzhou, China, Institute of Studies for the Greater Bay Area, Guangdong University of Foreign Studies, Guangzhou, China, Department of Economics, University of Missouri, Columbia, MO, United States


Sustainable Energy Systems with Policies in China
The earth has undergone tremendous changes since industrial civilization, and among these, climate change is one of the most obvious phenomena (IPCC, 2022). The average temperature of the earth has raised for nearly 1.5°C since 1900, which results in many catastrophes such as floods and droughts (Latif et al., 2022). Climate change caused by greenhouse gas emissions (GHGs) is a key issue for sustainable development all over the world (Mooney and Sjogersten, 2022). Globally, most countries are working hard to reduce carbon emissions by energy policies reform (Meys et al., 2021).
As the largest developing country, China is facing the dual constraints of economic development and environmental protection (Chen et al., 2017;Chen et al., 2020). On the one hand, China needs continuous development to improve the welfare of its residents. On the other hand, its ecology and environment have been severely damaged. A more efficient energy system is needed for China to alleviate this conflict (Rikap, 2022). So, the concern is how to maintain green and sustainable development through low-carbon energy systems. Based on the above, the journal Frontiers in Energy Research agreed to host a Research Topic about Sustainable Energy Systems with Policies in China. Nearly 50 papers have been submitted to this Research Topic and 22 of them are finally accepted, including 18 original research, 1 perspective, 1 policy and practice reviews and 2 policy briefs. The 22 published papers can be classified to 4 topics: industry, emission, energy and policy (See the following Table 1).

ECONOMICS EFFICIENCY AND INDUSTRIAL DEVELOPMENT
Totally five papers involve the topic of economics efficiency and industrial development. Zheng et al. surveyed the linkage development of the logistics and manufacturing industry by evaluating ecological efficiency evaluation and spatiotemporal characteristics. After classifying the carbon emissions from the logistics industry and pollution emissions from the manufacturing industry, the authors declared that the linkage ecological efficiency of the two industries will tend to be stable in the future. Jiang et al. studied the effect of market power and intertemporal permits trading (IPE) on economic efficiency. They showed that the producing and discharging behaviors of firms depend on the permits price elasticity of output price without the banking and borrowing (BB) system. The conclusions are helpful for the development of BB system. Pingkuo et al. investigated how to promote energy transition with market design by using an institution-economics-technology-behavior (IETB) analysis framework in China's electric power industry. They issued that market design should be pertinent and objective. Zhang et al. concerned on the economic impacts and challenges of Chinese mining industry (MI) by

CARBON EMISSION AND ECONOMIC GROWTH
For the technology constraints, there is a conflict between carbon emission and economic growth. Li et al. shown compared to 2012, several provinces and cities increase their direct CO 2 emissions for the development of economy. But interestingly, several papers found that carbon emissions reducing and economic growth can be compatible. For example, using provincial panel data of China from 2000 to 2017, Zhang et al. shown that the increase of lowemission electricity increases GDP but reduces CO 2 emissions. Another study from Wang also shown that it is possible to achieve the green and sustainable economic development by stimulating green energy use. Besides, Li et al. concerned the effects of carbon emission trading market on carbon emissions of public buildings. They issued that reducing the cost of energyconservation and emission-reduction technologies and appropriately subsidizing were effective methods to motivate public building owners to participate in carbon emission trading. Besides, Sun et al. investigated the relationships of carbon emissions and endogenous between two economic system. The marginal contribution for this study is that they consider two competitive economic system. As the largest developing country, China has carried out many beneficial reforms to its energy and development policies. The main purpose of the Research Topic was to assess the effects of China's energy policy reforms. Fortunately, it has received extensive attention and active contributions from scholars. Published articles are of high quality and cover numerous subjects in the energy economics, such as Economics efficiency and industrial development, Carbon emission and economic growth, Energy strategy and energy efficiency and, Energy policy in China. These research papers not only help people understand China's energy policy reform performance, but also help the Chinese government to further promote reform.

AUTHOR CONTRIBUTIONS
All authors listed have made a substantial, direct, and intellectual contribution to the work and approved it for publication.

FUNDING
This work was supported by the Guangdong Natural Science Foundation (2021A1515011960), the Foundation for Guangdong Province Universities and Colleges Pearl River Scholar Funded