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Grant Gerlock

Long before European settlers plowed the Plains, corn was an important part of the diet of Native American tribes like the Omaha, Ponca and Cherokee. Today, members of some tribes are hoping to revive their food and farming traditions by planting the kinds of indigenous crops their ancestors once grew.
In the Midwest, some creative growers have been tapping into the Earth’s own internal heat to warm greenhouses.
By some estimates, about a fifth of the nation’s energy supply is spent on producing food.
By some estimates, about a fifth of the nation’s energy supply is spent on producing food.
By some estimates, about a fifth of the nation’s energy supply is spent on producing food. Some farmers are trying to cut back.