This report discusses the growth of urbanization throughout the world with focus on the problems faced by poor city dwellers. The first section presents population data that show the great increases in urban populations around the globe during this century. Urban food supplies are discussed in the second section. Energy constraints on city growth are explored in the third section, with a discussion about differences in fuel use by urban and rural areas. The fourth section describes employment opportunities in cities and their influence on migration to urban areas. The final section of the report discusses a variety of strategies for managing urban growth. (MK)