Could be the subject of a Harvard economics study?
Field Work Makes Vienna Smell Like a Barn Wed Apr 6, 2005 - AP VIENNA, Austria - Vienna stank Wednesday, after unusual weather patterns and the spread of fertilizer in nearby vineyards combined to make the city smell like a barnyard.
Though cow manure is used on nearby fields every year, a lack of wind this spring has prompted the smell to hang over the city, said Peter Riess, an air quality management official. City officials say they've had dozens of complaints.