For middle school kids, their parents and teachers, this new book explains the science of global warming and gives kids encouragement that they can learn about it and also take action on climate change.  How We Know What We Know about Our Changing Climate:  Scientists and Kids Explore Global Warming is the only book that is science based and which gives teachers and kids tools to learn.  Learn about this book and get teaching material at the portal, How We Know Climate Change, or at the web site http://www.howweknowclimatechange.com