This blog about books talks about Heroes of the Environment: True Stories of People Who Are Helping to Protect Our Planet by Harriet Rohmer is an educational book targeting children in grades 5 through 9. This book shows how everyday people can make huge changes to help our environment by doing small things. John Todd and his creation of the Eco-Machine is just one of the many examples given (and one of the more complex), demonstrating that John's work spans all generations.