On the afternoon of June 7, 2017, Professor Tuholske from the Vermont Law School gave a lecture on the theme of "Clean up Pollution - Theory and Practice". Prof. Alexander Zahar, Associate Professor Liu Jing, Director Hu Bin, Associate Professor Partain from University of Aberdeen and doctoral and master students attended the lecture.

Professor Tuholske first raised a question to the attendees: What is the value of a fish? After the student answered, Professor Tuholske continued to ask: What is the value of the damaged habitat? Who should be the value of these decisions? This questions lead to the first theme of this lecture: How to assess the damage caused by pollution? Professor Tuholske pointed out that in the context of American law, the answer to this question includes two aspects, one is the costs of clean up and repair the environment, and the other is the price of natural resources damage. Professor Tuholske believes that we should create a legal system to force polluters to pay compensation.

After a comparative analysis of the general theory of environmental law enforcement in china and the United States, Professor Tuholske highlighted the remedial role of the US superfund act in this regard, including the underlying responsibilities, the form of liability, and the basic rules and extent of environmental clean-up standard.

Professor Tuholske followed introduced the two theories (government custody and public trust principles) behind the natural resource damage compensation system and three main principles of natural resource damage compensation. Subsequently, Professor Tuholske pointed out that the theory of cleaning up pollution is relatively simple, but in practice it is very complicated. Professor Tuholske gave a concrete explanation of the practice of cleaning up pollution by taking the mining of metal from Bart in Montana as an example: we have only one earth, and we should learn from each other in environmental protection.

During the lecture, Prof. Alexander, Prof. Liu Jing, director of Hu Bin and students were actively raised their own questions. Professor Tuholske and other participants discussed and analyzed these issues enthusiastically. At the end of the lecture, professor Tuholske and director Hu Bin exchanged souvenirs on behalf of the Vermont Law School and RIEL respectively. The lecture was successfully concluded in a warm atmosphere.