Not a Drop to Drink : Water for a Thirsty World

"National Geographic Investigates" introduces young people to cutting edge techniques of scientific investigation, the most current discoveries, and the way that those discoveries are interpreted to throw new light on our understanding of ourselves and the world around us.

Special features include: sidebars explaining the latest technology being used by scientists, a Meet the Expert sidebar presenting an interview with a scientist currently working in the appropriate field, timelines placing research and researchers in historical context, and lavish design including photographs, illustrations, and diagrams.