The chairman of the Emmet County Board of Supervisors says there will be revisions in a proposed ordinance to restrict where wind turbines may be placed. The board held a public hearing Thursday night on the initial proposal from Emmet County’s Planning and Zoning Commission. Tim Busch, director of the Aviation Program at Iowa Lakes Community College, says he’s not opposed to wind turbines, but he asked the board to be cautious about allowing towers in areas that could impede take offs and landings.