Integrated approach to sustainable development / F. Douglas Muschett -- Ecological perspective on sustainable development / C. Lee Campbell and Walter W. Heck -- After Rio : the new environmental challenge / Si Duk Lee and Victor S. Lee -- Technologies for sustainable development / Thomas T. Shen -- How do we know what is sustainable? : a retrospective and prospective view / John L. Warren -- Air quality, land use and transportation perspectives : a California case study / Victoria Evans.