Author:Donald Worster，Born in California, USA in 1941，Received PhD from Yale University in 1971，Hall Distinguished Professor of American app bet365 download at the University of Kansas from 1989 until retirement。He is one of the founders of American environmental app bet365 download，Served as President of the American Society for Environmental app bet365 download，The representative work "Dust Bowl: The Great Southern Plains of the United States in the 1930s" (1982) won the highest award in American app bet365 download, the "Bancroft Award"。His works translated into Chinese include "The Economic System of Nature: A app bet365 download of Ecological Thought", "Dust Bowl: The Great Southern Plains of the United States in the 1930s", "Under the Western Sky: Nature and app bet365 download of the American West" and "River of Empire: water、Drought and the Growth of the American West》。　

　　Summary:Environmental app bet365 download emerged in the mid-1970s as a new field of historical research。Environmental app bet365 download mainly studies the interaction between man and nature，Changing the way people think about the past，Provides new topics for the academic community、Research object、Methods and materials。The research includes three levels，“Nature”, “Culture” and the integration of the two。In recent years，Research topics of widespread concern in environmental app bet365 download include the integration of environmental app bet365 download and natural science、Climate change、Infectious Disease、Water、City、Environmental Justice、Species、Sex、Internationalization of environmental app bet365 download, etc.。[Translated by Xu Lu, Liang Xiaoyi, and Li Xinghao]