These people think you're stupid: With an average Earth temperature of 59 degrees, and with optimum corn growth temperature at 93 degrees, we're told that a little extra warmth would be devastating for corn growth

Experts: Global Warming Could Double Food Prices - TIME

In one combination of climate models and scenarios, "the corn belt in the United States could actually see a significant reduction in productivity potential," Nelson told reporters here.
...
With climate change factored in, the increases in real prices by 2050 could range from 31 percent for rice in the most optimistic scenario, to 100 percent for corn in the most pessimistic. And IFPRI has estimated that such skyrocketing prices could boost the global population of undernourished children by 20 percent, by an additional 25 million children.

What Is the Average Temperature of Earth? | eHow.com

# When scientists measure the average temperature of the Earth, they take many readings from the coldest and hottest places before calculating a mean temperature, generally agreed to be 15 degrees C (59 degrees F).

Lesson 1b: Growing Degree and Applications

The crop grows according to an "S"-shaped curve depending on temperature, with the ideal temperature for crop growth, if everything else is satisfactory such as nutrition and water availability, being somewhere around 93 F

[And the kicker: One "solution" for this "problem" is to burn over 40% of the current US corn crop]

The U.S. ethanol industry will consume about 41 percent of the U.S. corn crop this year, or 15 percent of the global corn crop, according to Goldman Sachs analysts.