Sustain, a U.K.-based food and farming alliance, has shown that iceberg lettuce flown from Los Angeles to London requires 127 calories of fuel for every food calorie. Sustain also reports that countries often end up swapping food instead of importing critical items that cannot be produced locally. The U.K., for example, imported 126 million liters of milk and exported 270 million liters in 1997.
Researchers at Iowa State University have found that fruits and vegetables travel an average of 1,500 miles within the U.S., a 22 percent increase since 1981. [...] The transportation sector consumes nearly 60 percent of the world's oil and produces a quarter of all energy-related carbon-dioxide emissions. Oil use by transportation has almost doubled since 1973.
Global Trade = Global Warming:
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