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美国环境保护的发展过程环境保护,指对人类生存环境的保护。生存环境的内涵包括空气、水源、自然保护区、风景游览胜地、电磁波、臭氧层和整个生态体系的良性循环。在近代大工业建立之前,环境对于人类是作为一种自然界无偿提供公共产品存在着。环境恶化问题,只是在大工业发展到相当程度才被人们所认识
The United States environmental protection development process Environmental protection, refers to the protection of human living environment. The connotation of living environment, including air, water, nature reserves, scenic resorts, electromagnetic waves, the ozone layer and the ecosystem as a whole virtuous circle. Before the founding of the modern big industry, the environment existed for the human being as a kind of public goods provided by nature free of charge. The problem of environmental degradation has only been recognized by the people before the development of large industries reaches a certain level