Some experts predict the Presidential emphasis on bio-fuel will put a strain on corn farmers and ethanol producers.
Some are afraid the higher demand for corn will send food and feed prices skyrocketing, forcing hardships on ranchers and countries that import grain.
Tom Theiding with the Wisconsin Farm Bureau Federation says not to worry. He says in ten years corn won't be the main source of bio-fuels. Research is being done on using wood chips and other forestry and paper mill byproducts plus switch grass and other organic products that can be grown.
Some utility companies are already testing switch grass as a fuel for electric generating plants with some success.