According to Baidu Encyclopedia, the North American Dead Lake Incident, also known as the North American Dead Lake Acid Rain Incident, refers to the increase of acid rain in the industrialized areas of the United States and Canada since the 20th century, which led to strong acidity in many lakes in these areas, and then almost all the creatures in some lakes died. This situation continues. In English, there is no "event" in this situation, only a lake with almost no life is called a dead lake. According to the one called Dou Ding. Com, the reasons why the North American Dead Lake incident was not handled in time mainly include the following aspects:

Political factors. The United States and Canada have a diplomatic dispute over acid rain. Canada accused the United States of being the main source of acid rain and demanded that the United States take measures to reduce pollutant emissions. However, the United States refused to admit its responsibility and signed a bilateral agreement, which led to a deadlock in cooperation between the two countries.

Economic factors. The industrial development of the United States and Canada depends on a large number of coal burning, and sulfur dioxide and nitrogen oxides produced by coal burning are the main components of acid rain. In order to reduce acid rain pollution, it is necessary to change the energy structure and reduce the amount of coal burning, which will bring great cost and influence to the economic development of the two countries.

Scientific and technological factors. Acid rain pollution is a complex regional environmental problem, involving atmospheric chemistry, hydrology, ecology and other disciplines, and needs a lot of scientific data and technical support. But in the middle of the twentieth century, these fields were not developed enough, and there was still a lack of in-depth understanding and effective methods for the causes, effects and treatment of acid rain pollution.