Abstract: Environmental ethics proceeds from people's indentity and abstract general principle,declares that people and nature,people and people are interests communities,and they can not be separated it,must lead to the environmental colonialism and environmental hegemonism prevail,environmental protection may become a kind of inequitable savage act .The essence of environmental justice is on the basis of people's difference and social justice with unified indentity,it emphasizes from the angle with each other symmetrical right and obligation different country,what different areas formed are the community with difference.According to the just thought of the environment,it must be connected with safeguarding the poor peasant and just rights and interests of the disadvantaged groups of west to implement the development of western regions,realize the just distribution of the right and obligation.

Key words: Environmental ethics, Environmental justice, Right and obligation, Development of western regions