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Growing corn for ethanol may lead to increased CO2 emissions from clearing land

About a third of the 2009 US corn crop became ethanol

Farming new land can release lots of CO2 into the atmosphere

Farming fuel crops may drive far-off deforestation and CO2 release

Deforestation accounts for about 20% of CO2 emissions globally

Fossil fuels supply about 80% of the energy in corn ethanol

Corn ethanol can cause more greenhouse pollution than gasoline

Federal law sets a minimum annual level of biofuel production

Cellulosic biofuel can be made from almost any plant matter

Using cellulosic ethanol instead of gasoline should reduce CO2 emissions

Iowa is the nation’s largest producer of corn ethanol

Iowa: Corn and Climate

Congress helped bolster the corn ethanol business in Iowa by mandating the Renewable Fuel Standard in 2005. But scientists are concerned about…

Montana: Trout and Drought

Montana's recreational fishing and agricultural industries depend on cool waters flowing from melting snow high in the mountains throughout th…

Water over 70°F is generally lethal for trout

Tailwater fisheries may be partly insulated from climate change

Rising temperatures threaten to reduce western trout habitat