Amazon Deforestation

Amazon Deforestation

  • Published: Jan 28th, 2009

Recent deforestation in Brazil has been rapid, causing greenhouse gas emissions. Some argue planting more U.S. corn for ethanol may ultimately be a contributing factor.

Corn Ethanol Energy Sources

Corn Ethanol Energy Sources

  • Published: Jan 28th, 2009

8 gallons’ worth of the energy in 10 gallons of corn ethanol comes from fossil fuels.

Iowa: Corn and Climate

Iowa: Corn and Climate

  • Published: Jan 28th, 2009

Congress helped bolster the corn ethanol business in Iowa by mandating the Renewable Fuel Standard in 2005. But scientists are concerned about the unexpected consequences of putting more of Iowa's land into corn production.

Corn Ethanol Energy Sources

Corn Ethanol Energy Sources

  • Published: Jan 28th, 2009

8 gallons’ worth of the energy in 10 gallons of corn ethanol comes from fossil fuels.