Although the environmental impact assessment system has been for nearly forty years, theories and techniques are till in the stage of developing and improving.
建立环境影响评价制度已有近四十年的历史,环境影响评价的理论和技术方法等日臻完善。
2
Life cycle Assessment (LCA) is a quantitative and qualitative analysis tool of environmental impact caused by life cycle of products, techniques and activities.