Well, I'm not actually sure about how much it's been read, but Cartriona MacGregor's Partnering with Nature: The Wild Path to Reconnecting with the Earth is certainly getting recognized for its greenness.
The book recently won the Social Change category at the Best Books 2010 Awards.
I have not yet read it, but the news article about the book's award caught my attention because it says Partnering with Nature explores the reasons, including health benefits, people should strengthen their relationship with the environment. The article also says the book provides a look at the ways people can achieve such a reconnection, including the development of an "eco-consciousness" and the use of new technologies.
Given that this blog has dedicated much time to similar ideas, I thought it might be a good idea to spotlight MacGregor's book. Check it out if you are looking for some reading.