Long time friends Sally Ride and Tom O'Shaughnessy have written a great book on the changing climate of earth. The book is written for a middle school level, although it could be read and discussed with younger children and even older than the preteen set could benefit from reading the text and studying the charts. Always beneficial is the index included.
I do wish that Sally Ride used more of the glory of the earth she saw in space other than the first two pages; or what she gained in the related field from her astronaut training.
There are simple but comprehensive explanations explaining the changing climate of earth and how intricate the nature of what is occurring is. The charts included throughout are simple but complete, probably the best I have seen, they are so good, it made me wish for more, but information covered is sufficient and made attention-grabbing.