These criteria work in balance and each, if altered, would create profound effects on today's society. Dr. Henry Pollack, an experienced and passionate geophysicist, persuasively shows these effects in a sophisticated way in A World Without Ice. As someone who is fascinated by science and very knowledgeable in some of its disciplines, I found Dr. Pollack's work very important and one that people all over the world should read. Despite being very knowledgeable on the subject, Dr. Pollack presented some relationships between aspects of the Earth's climate that I had never thought about before. In order to understand how our planet is unique and dynamic, it is imperative to understand how the climate works from pole to pole, which is what Dr. Pollack precisely outlined at the beginning of the book. That of the Earth