By Friedman, Mark AT FIRST, IT WAS HARD TO FIND anyone against the use of biofuels. Biofuels were promoted as helping the United States curb its dependency on foreign oil. And they were good for the environment since they were cleaner-burning than petroleum products.

By Dennis Lien, Pioneer Press, St. Paul, Minn. Feb. 8--ENVIRONMENT -- Converting healthy grasslands, forests and other native ecosystems into farms for biofuel crops worsens global warming, a new study says.