Leon Gray 
Polar Lands [PDF ebook] 

Here is the perfect introduction to the places where animals and plants live and grow. Each book explores one of the world’s major biomes and describes its climate, the people who live and work there, threats to the environment, and measures that are being taken to protect it. This book looks at the world’s polar lands and how animals and plants have adapted to survive in environments where temperatures are below freezing for most of the year.