That's probably because the blog linked to is mostly just a cut-and-paste from the linked Time article (http://www.time.com/time/health/article/0,8599,1917458-1,00....). This blog post only quotes a part of page 2 of a five-page article, all of which is worth reading.
Thanks for pointing that out, I totally missed the attribution to time.com. I thought the article was just formatted weird.
I agree the full Time article is better, but it still doesn't address the billion people it mentions going hungry. Ultimately the agricultural system that is sustainable determines the population that is sustainable, and I am concerned that the people who aren't going to be sustained won't have much say in the matter.
