I just became aware of this blog because of a link posted on Survivalblog.com. I've glanced through a few articles, but this one really peaked my interest. I also read a similar article in the most recent issue of Backwoods Home magazine and may do an upcoming episode using ideas touched on in this post. Suffice it to say, it's becoming more and more obvious that there is a potentially troublesome food crisis coming on a global scale in the near future and the elements listed by this author are just a few of the reasons. I highly recommend you read this article when you get a chance.
UPDATE: Jack Spirko over at TSP has also done an episode about how to prepare for the eventualities detailed in the above blog post: http://www.thesurvivalpodcast.com/episode-647-12-methods-of-individual-food-production