We have made an effort to build an affluent society since the industrial revolution. But we have just realized that the effort is also spoiling ourselves. Because our wealth has been acquired at the sacrifice of the environment only in which we can live. The amount of carbon dioxide emitted by burning fossil fuels is representing the environment disruption problems. Fortunately our mind ts changing. Many trials are being paid against the increase of carbon dioxide to save our environment. The roll of consulting engineers is to make a keen effort tn each professional field and to appeal the importance of mindtng the environment by giving a clear image of the problems to the public. The aim of the technical development should not be at the convenience of our lives but should be at the decrease of environmental load. That Is a new utopia of technology.nology.