07/09/2008 05:12 am ET Updated May 25, 2011

Biofuel Future Threatened By Severe Weather

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.

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