Image from the George W. Malone You already know them as nature's lungs. But its deodorant, too? That is the conclusion of new research done by George Malone, a poultry specialist at the University of Delaware, who found that planting trees around poultry farms helped to significantly cut their emissions and odors. Three rows of trees were enough to reduce emissions of dust and ammonia by 56% and 53%, respectively; they also helped kill 18% of the odors. These benefits also translated into lower energy bills for the farms, Malone said, by increas...