Dr Opio is now in the company of other environmental giants such as Lindsay Williams and Dr. David Suzuki by having the NUDF story and his biography featured along side the others in a textbook called Creating Meaning Advanced: Reading and Writing for the Canadian Classroom.
Just as it says in the link, The book is intended for advanced learners who are preparing for academic studies. The focus of the book is on reading, writing, critical thinking, and vocabulary development. It has 10 chapters and each of them is organized around a theme that is current and of high interest.
The book is very educative and if you are interested in learning and knowing about what Dr. Opio writes as well as learning more about him as a person , order a copy and creating a meaning now!