Fundamentally, the global environment is in a desperate state of decline．Initially the Green Movement was seen to solve the problem of reducing running costs．This in turn has resulted in concern for the depletion(损耗 )of natural resources and finally in concern for the damage being done to the global environment． 
    Unfortunately the growing numbers of organizations and committees dedicated to saving the environment have only been able to outline appropriate proposals and initiatives．Because there is not a body that has the ability to enforce global legislation, there have not been any treaties or legislation that are globally binding．Cities are able to address social, economic and environmental issues through grassroots planning initiatives．The power of collective will and civic ambition reminds us that human behavior can be shaped as much by our designed environment as by social policy, such as governmental management and legislative control．While such participation can be a powerful catalyst(催化剂)for social change, it is by no means an easy task．It can begin with a simple awareness of our physical environment: What does it consist of now? How does it affect our behavior? What needs to be changed?
    The general public needs to be accountable to themselves for the choices they make．By way of their accountability they will be maintaining and recycling not only physical resources, but also cultural resources for the benefit of future generations．Cultural practices traditionally dictate the desire of the society for sur-vival．Decay is inevitable, as it is law of nature and we can only attempt to slow its course of destruction． 
Preservation must be geared to preserve the messages and values: emotional values, cultural values and use values．Each is defined by its own terms and in some cases has overlapping identities．With this in mind,why is modern man living in excess of what is environmentally feasible, therefore hampering the efforts to perpetuate society? It is vital to work in conjunction with nature．Humans have the power to change the natural harmony of the earth, but we continue to accept subnormal and double standards． 
    As will be discussed, there has been some headway made in the last few years regarding the integration of the built environment with green architecture．However, not much has been realized in terms of the integration of historic preservation and green architecture in house．Presently there are examples of historic preservation and green architecture working in conjunction in commercial buildings．