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Overview"In the Arctic, the summer ice is melting, making it hard for polar bears to survive. Why is the world getting warmer? The heat of the sun is trapped by the ""greenhouse"" gases that surround Earth--carbon dioxide, methane, nitrous oxide, and water vapor." Full Product DetailsAuthor: Robert Wells , Robert E WellsPublisher: Albert Whitman & Company Imprint: Albert Whitman & Company Dimensions: Width: 26.60cm , Height: 0.20cm , Length: 17.70cm ISBN: 9780807565995ISBN 10: 0807565997 Pages: 32 Publication Date: 31 October 2008 Recommended Age: From 7 to 9 years Audience: Children/juvenile , Children / Juvenile Format: Paperback Publisher's Status: Active Availability: In Print ![]() This item will be ordered in for you from one of our suppliers. Upon receipt, we will promptly dispatch it out to you. For in store availability, please contact us. Table of ContentsReviewsAn excellent introduction to the topic for primary-grade children. <p>School Library Journal An excellent introduction to the topic for primary-grade children. School Library Journal An excellent introduction to the topic for primary-grade children. School Library Journal A fine addition to early science collections. Kirkus Reviews Author InformationRobert E. Wells is the author and illustrator of many award-winning science books for children, including Can You Count to a Googol? and Why Do Elephants Need the Sun?. He lives with his wife in Washington. Robert E. Wells is the author and illustrator of many award-winning science books for children, including Can You Count to a Googol? and Why Do Elephants Need the Sun?. He lives with his wife in Washington. Tab Content 6Author Website:Countries AvailableAll regions |