/webreadinfo.asp？ NID = 98 & ID = 26 This is written in great detail. (3) Impact of trade discrimination Environmental tariffs do not violate the non-discrimination clauses of international trade agreements, but imply discrimination. On the one hand, due to the different environmental protection conditions and preferences of different countries, the implementation of environmental tariffs is not conducive to the competition of imported products in the importing countries' markets, thus resulting in the problem of "hidden discrimination" against imported products. Generally speaking, environmental tariffs reflect a country's environmental preference for production and consumption. Relevant departments, organizations and industries in various countries may reflect their interests with different concepts or connotations that affect environmental tariffs, thus constituting trade discrimination against foreign imported products. On the other hand, the environmental tariff policies and measures adopted by many countries have promoted or hindered the trade of certain commodities to a certain extent. The purpose of environmental tariffs is to reduce the environmental impact of product consumption and production in importing and exporting countries. At present, some environmental tariff policies are mostly formulated according to the principle of non-discrimination. However, due to the lack of effective international coordination, the implementation of these environmental tariff policies has caused the adaptability problems of foreign manufacturers, which actually constitutes trade discrimination and hinders the normal development of international trade to some extent. Countermeasures China should take in environmental tariffs At present, environmental problems in international trade have attracted the attention of countries all over the world, and environmental tariffs are used by more and more countries as trade measures related to the environment. As a developing country, China not only suffers from environmental problems in its economic development, but also faces the threat of global environmental problems. It is very urgent and necessary to carry out environmental tariff research and take relevant measures. (1) Actively participate in the formulation of international norms on environmental tariffs. Environmental tariff policies and measures have an increasing impact on the development of international trade, which can affect the adjustment of international trade pattern and change the distribution of international trade benefits among different countries. In fact, many environmental disputes related to international trade are rooted in the conflict between countries in the distribution of trade benefits. The understanding of environmental tariff should not only stay at the level that it is a kind of trade policy innovation, but should be grasped from the strategic height of national interests. In a sense, international trade competition is a struggle about trade rules. China, as the largest developing country in the world, should actively participate in the negotiation and formulation of international norms of environmental tariffs in WTO according to its economic nature and trade effect, further expand its influence in international environmental protection legislation and trade legislation, curb the development of "green trade protectionism", promote the formation of international rules of environmental tariffs in favor of China, and earnestly safeguard China's environmental rights and national economic interests. China should strengthen cooperation with developing countries on environmental tariffs, coordinate its position on environmental tariffs and safeguard common interests. At the same time, we should also deal with the "ecological aggression" of some developed countries against developing countries, prevent improper transfer of environmental pollution in international trade, and promote economic development and social progress. (II) Formulation and implementation of environmental tariff system Environmental tariff embodies the environmental protection function of tariff, and the development of environmental tariff will lead to the reform of tariff system. Most countries in the Organization for Economic Cooperation and Development (OECD) determined the important position of environmental protection when designing tariff system reform, and took the structural adjustment involving environmental tariffs as the important content of tariff system reform in 2 1 century. At the same time, many developing countries are also speeding up the implementation of environmental and resource protection tariffs to cooperate with other government policies and promote sustained economic growth. So far, the guiding ideology of eco-environmental protection has not run through the reform of China's tariff system. In the process of implementing the sustainable development strategy, China needs to play the role of tariffs in environmental protection. Our country should set up a special department to investigate and study this aspect from now on. Classify and grade the commodities in international trade, and do a good job in domestic research and organizational preparation in light of the actual situation. According to the main characteristics and trade effects of environmental tariffs, we should also pay attention to the reform of tariff system that is coordinated with sustainable development and environmental protection, and construct China's environmental tariff system to promote the sustainable development of the national economy. (III) Strengthening Environmental Tariff Legislation In the process of formulating trade policies and laws, it has become the consensus of the international community to consider environmental protection. According to the multilateral trade rules of WTO, importing countries have the right to formulate domestic laws on environment, health and safety for imported products entering their territory to solve external problems, and countries are also expanding the use of environmental tariff measures to regulate the relationship between trade and environment. At present, the biggest problem in implementing environmental tariffs in China is that there is no complete "green tax" system and no environmental tariffs are imposed on domestic products. Therefore, if environmental tariffs are levied separately, it will violate the principle of national treatment and lead to trade disputes. In fact, environmental protection should always be based on domestic protection, and environmental tariffs must also be based on a unified domestic environmental system. Therefore, China should further strengthen the relevant legislation of environmental tariffs, encourage resource conservation and recycling, choose environmentally friendly products, and gradually eliminate polluting products. Environmental tariff revenue is used for environmental protection, which not only effectively prevents the transfer and diffusion of environmental pollution, but also solves the difficulty of shortage of environmental protection funds. Failure to obey the law means failure. China should further strengthen the enforcement of environmental tariff law, severely punish violations of environmental laws and regulations in economic and trade activities, and take effective economic adjustment measures to cooperate and induce them, forcing enterprises to internalize reasonable environmental costs.