The leaks of the most recently proposed ethanol volumes for 2014 underscore an issue that has been going on since 2007 – miles driven by American motorists are less each year. With that, the 10 percent blend wall is easier to meet with less ethanol. The statutory requirement for conventional corn-based ethanol in 2014 was supposed to be 14.4 billion gallons. The Environmental Protection Agency (EPA) looks like it will set the volume at 13 billion gallons and has even floated figures as low as 12.8 billion gallons. EPA noted in its tardy 2013 volume obligations rule that the absolute maximum for ethanol consumption in 2014 would be 13.2 billion gallons. The U.S. Energy Information Administration (EIA) explained the situation as meeting the...