sustainable infrastructure it s livable cities urban sustainability green buildings smart growth guiding principle balance needs with environmental protection to enhance the quality of life for present and future generations worldwide development milestones 1987 our common 1992 agenda 21 2000 millennium declaration 2002 world summit national strategies case higher standards living population poverty rate today speakers althea povey south africa name tbd china bill howard united states end introductory remarks elements economic this paper a brief overview issues morning session engineers water resources energy generation renewable star program afternoon abandoned properties brownfields american society civil asce policy role engineer in promote understanding advance skills advocate responsible approaches holistic performance based integrated resource planning irp management los angeles california challenge meet 4 5 million people by 2020 city limited non utilities inefficient goals