一、问题引入随着生产力的不断提高,人类社会经历了“适应自然”、“利用自然”和“控制自然”三个阶段。科技的进步使人类改造自然的能力不断提高,经济发展与环境保护的矛盾也日益凸显,甚至影响到人们的日常生活,但当地政府出于地方经济发展的考量,往往不能坚定地治理环境。近年来,类似常州外国语学校毒地污染事件的严重环境污染报道屡见不鲜,但结果往往是不了了之。经济学上有一个著名案例发生在加拿大安大略省的一个 I. Introduction of Problems With the continuous improvement of productivity, human society has experienced three stages of “adapting to nature”, “using nature” and “controlling nature”. With the advancement of science and technology, human beings are constantly improving their ability to transform nature. The contradictions between economic development and environmental protection have also become increasingly prominent and even affect people’s daily life. However, due to local economic development, local governments often can not firmly control the environment. In recent years, there have been many reports of serious environmental pollution similar to the poisonous pollution incident of the Changzhou Foreign Languages ​​School, but the result is often unmanageable. A well-known case in economics occurs in Ontario, Canada