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32 pages • first pub 2008 (editions)
ISBN/UID: 9780807565995
Format: Paperback
Language: English
Publisher: Albert Whitman & Company
Publication date: 01 September 2008
Description
In the Arctic, the summer ice is melting, making it hard for polar bears and their cubs 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 oxi...
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32 pages • first pub 2008 (editions)
ISBN/UID: 9780807565995
Format: Paperback
Language: English
Publisher: Albert Whitman & Company
Publication date: 01 September 2008
Description
In the Arctic, the summer ice is melting, making it hard for polar bears and their cubs 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 oxi...