Study: Biofuels Grow Dead Zone

There’s another possible downside to the national
boom in the production of corn-based ethanol. A new
study says increased ethanol production would further
pollute the Mississippi River and Gulf of Mexico. Chuck
Quirmbach reports:

Transcript

There’s another possible downside to the national
boom in the production of corn-based ethanol. A new
study says increased ethanol production would further
pollute the Mississippi River and Gulf of Mexico. Chuck
Quirmbach reports:

Most of the ethanol currently made comes from corn grown in the central part of
the US.

Chris Kucharik is part of a team of researchers that has been studying
what agricultural fertilizers do to the Mississippi River Basin. Kucharik says,
based on his study, ramping up the growing of corn for ethanol would increase
nutrient pollution in the river by 10 to 20%.

“That pretty much will make it impossible for us to reach a goal of reducing
nitrogen export by the Mississippi River.”

Kucharik says nitrogen pollution already contributes to a huge dead zone in the
Gulf of Mexico. The area is depleted of oxygen. He says his prediction of more
problems may not come true if a lot of ethanol production is switched to crops
that don’t need much artificial fertilizer.

For The Environment Report, I’m Chuck Quirmbach.

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