I've always been fascinated by the idea of the false dichotomy. It is either A or B. For or Against. Paper or Plastic. Working with computers for most of my life, you would think that I would be the first to go "Well, sure, things are either True or False. 0 or 1." But ironically, when you start coding, you learn that most solutions exist as a linear combination, more like 20% A, 35% B, 37% C, and the rest is Pure Freaking Magic.
TED 2012 came out with a rather unique combination: "The Earth is full" by Paul Gilding and "Abundance is our future" by Peter Diamandis. Paul explains the earth is full, that we're running at 1.5 Earths and as if that wasn't bad enough, the United States wants to quadruple output in less than 40 years and China wants to get there in 20.
Peter, on the other hand, explains that while we have had serious problems in the past, they were all temporary, and in the long view, they have never slowed progress. His best example was aluminum, once an extremely rare and precious metal beyond gold or platinum, it became cheap and commonplace due to an amazing technology of electroplating. From that, he extrapolates that we have the best tools ever to turn global problems of scarcity into reasonable abundance.
While there is a debate of whether Paul or Peter is correct, they do not actually contradict each other. Paul points to lots of serious problems which are a reflection of consuming beyond our means and 50 years of ignoring warnings of what the consequences will be. He points that until everything seriously breaks down and literally the lights go out on the global economy, that is when we will move forward. Stating that the next war will not be "a war between civilizations but a war for civilization".
The only question left is how much more famine do we need before we invite ourselves to the feast?