Glaciers - Images Series Author:Michael George Think of one tiny snowflake. Now imagine the millions upon millions of snowflakes that cover a sloping mountainside. When these layers of snowflakes compress, a massive ice sheet is formed. Gradually, it begins to move, creating one of nature's most powerful forces: a glacier. You'll learn all about glacier movement, seracs, crevasses, and cirqu... more »es in Glaciers, a book with fascinating photographs that will allow you to explore glaciers up close. Throughout the world's history, glaciers have created some of the earth's most beautiful terrain. Giant ice sheets still move across portions of continents and are a crucial part of our ecosystem. In Glaciers, you'll discover how, by protecting our environment, we protect glaciers and ultimately ourselves.« less