Pounds of greenhouse gas emitted to produce a 64 ounce container of Tropicana Orange Juice:

3.75
According to a study by Coumbia University's Earth Institute, 60% of the greenhouse gases are emitted during growing and manufacturing, 22% in distribution, 15% in packaging, and 3% in disposal.
Source: TIME Magazine, 4/19/2010

 
   
 
Carl E. Lewis (flickr Nov. 2007)
Year in which U.S. sweet potato consumption peaked:

1920
Americans ate 29.5 pounds of sweet potatoes per capita in 1920.
Source: Wall Street Journal, 11/21/2007

 
   
 
Scott Robinson (flickr Oct. 2003)
Highest price per bushel ever recorded for soybeans:

$12.90
In June 1973, soybean prices peaked at $12.90 a bushel, after Russia started importing soybeans, creating increased demand.
Source: New York Times, 11/24/2007