Download or read book I Wonder Why written by Sean Callery and published by Pan Macmillan. This book was released on 2008 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The perfect introduction to the environment, featuring melting ice caps, the ozone hole, solar power and much more. Clear, lively text answers all those tricky questions about how the world works, while friendly, funny cartoons add interest.--Cover.