Allowing E15 fuel year-round won't increase sales very much, but it's a symbolic victory for corn ethanol advocates
- Written by Aaron Smith, Professor of Agricultural and Resource Economics, University of California, Davis

As part of efforts to dampen high gasoline prices, the Biden administration is temporarily allowing gas stations to sell a special fuel blend called E15, containing 15% ethanol, year-round. Under the Clean Air Act, E15 cannot be sold in summer because it evaporates more readily...