This book focuses in the current situation of water resources, water supply and sanitation, and population movement in Latin America. It identifies new phenomena and challenges that will put more pressure on water resources in the near future and that will create important socioeconomic constraints in population and their governments. This volume offers an evaluation of water resources availability and consumption, water supply and sanitation shortages, management models and population growth and territory occupation trends in eighteen Latin American countries. Also a set of recommendations, policy proposals and projects is outlined.