Droughts, acid rain, and pollution are all problems found around the world. Learning about how to conserve and care for the precious water on Earth should be an important part of every person's science background. This book introduces readers to the fundamental water issues in both first and third world countries. The main content encourages them to think both locally and globally, including real-life examples of conservation efforts complete with full-color photographs to show readers the reality of droughts and pollution. --Publisher's description.