
The record storms and floods that swept through the Midwest last month struck at the heart of America’s corn region, drowning fields and dashing hopes of a bumper crop.
They also brought into sharp relief a new economic hazard. As America grows more reliant on corn for its fuel supply, it is becoming vulnerable to the many hazards that can damage crops, ranging from droughts to plagues to storms.
The floods have helped send the price of ethanol up 19 percent in a month. They appear to have had little effect on the price of gasoline at the pump, as ethanol represents only about 6 percent of the nation’s transport fuel today.
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