Beyond 7 Billion | Hunger Without End
http://www.latimes.com/news/nationworld/world/population/la-fg-population-matters3-20120726-html,0,2752228.htmlstory

As the world's population grows, hunger persists on a massive scale

Nearly 1 billion people are malnourished, and a child dies of hunger every 11 seconds. By 2050, farmers would have to double crop production to meet the demand.