And while we are on the subject, how do the authors suggest we meet those demands? What are the positions of the authors' on things like GMO's and nuclear energy? Where is their data that a green revolution can solve the problems they presented? What would said green revolution even consist of?
You see a study with vague conclusions based on limited data does not constitute "intelligent and reasonable," at least by my expectations. When I see the word study, I expect a body of work that adds something to the conversation. This fails to do that.