I would recommend it to just about anyone, because it explains the environment in quite a simple, but immensely analytical way. For example, what is more impactful, cutting down on air travel, or switching to wind energy? This book runs the numbers to explain the impact of different decisions. If you’re running a portfolio or a project, this is a good first step to understanding the environmental impact for both you and your stakeholders. It’s a long book, but you can easily skim to get the key points, and since you can download the PDF for free, you don’t feel compelled to read every single page.
Note the free delivery of the book is very much the author’s intention, he’s keen to contribute to the environmental debate, rather than make money, and I think you’ll find his perspective is well reasoned and objective.
The New York Times has a great blog devoted to environmental topics, which you can find here