"Many analysts expect the 2013 numbers [in the United States] to be followed by a 2014 decrease of 4.5 percent or more," he said. "These two years would represent the largest percentage decrease since the late 1970s."
Scarcity of Food
The population of the world is increasing, but in some areas the production of food is decreasing. If this decrease in food production continues, a world-wide disaster could occur as food becomes scarce. Here are links to scientific articles about the decrease of food-production.