Ozone rise will choke US cities | Climate News Network
▻http://www.climatenewsnetwork.net/2014/05/ozone-rise-will-choke-us-cities
By Tim Radford
Poor air quality and health problems will become the summertime norm throughout the US as scientists predict a 70% rise in ground-level ozone − unless action is taken to cut emissions
LONDON, 18 May − Stand by for long, hot North American summers of smarting eyes, tickling throats, asthma, bronchitis and emphysema. And crops could also suffer, because ground-level ozone pollution is likely to increase in the US.