What Is a Strategic Environmental Assessment?

The concept of Strategic Environmental Assessment (SEA) was proposed by Thérivel R, Wilson E, et al. In 1992 for the shortcomings of the project EIA. As an effective means of implementing a sustainable development strategy, the proposal of SEA has been highly valued by academia, government and relevant international organizations, and has developed rapidly in the United States, Canada and EU member states.Many scholars in Mainland China and Hong Kong have also expressed interest in SEA The theories, methods and framework structure of this paper are studied.