Breadcrumb Home 'How Iowa became the nation's leader in wind energy' Thursday, May 12, 2016 http://www.yesmagazine.org/issues/life-after-oil/how-iowa-became-the-nations-le… YES! Magazine quotes the University of Iowa's David Osterberg, an associate clinical professor of occupational and environmental health, about why Iowa outperforms the nation in wind-energy production.