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Iowa: Corn and Climate Watch Video

Videos - States of Change

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 the unexpected consequences of putting more of Iowa's land into corn production.

Montana: Trout and Drought Watch Video

Videos - States of Change

Montana: Trout and Drought

Montana's recreational fishing and agricultural industries depend on cool waters flowing from melting snow high in the mountains throughout the summer. But across Montana, rising temperatures are causing a series of changes.