Richter, Al

A brief introduction to droughts, explaining what they are, and where, when, and why they occur, and looking at the dangers posed by droughts. Includes a glossary.

Presents a brief study of the ocean tides, what creates tides, and how people who fish for a living depend upon the various tides.

A photographic introduction to ocean tides, explaining what they are, discussing the relationship between the moon and tides, and looking at deep tides, and interactions of tides, people, and animals.