William P. Cunningham University of Minnesota Mary Ann Cunningham Vassar College Copyright ? The McGraw-Hill Companies, Inc. Permission required for reproduction or display. *See PowerPoint Image Slides for all figures and tables pre-inserted into PowerPoint without notes. Chapter 17 Lecture Outline* Water Use and Management Outline Hydrologic Cycle Uneven Water Distribution Major Water Compartments Water Availability and Use Droughts and Water Shortages Water Use is Increasing Groundwater Depletion Dams and Diversions Fighting Over Water Conservation of Water Supplies The Hydrologic Cycle Redistributes Water Hydrologic Cycle ?water evaporates from moist surfaces, falls as rain or snow, passes through living organisms and returns to the oceans.