Climate News Network: 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.
Gabriele Pfister, an atmospheric scientist at the US National Center for Atmosphere Research in Colorado, and research colleagues report in the Journal of Geophysical Research: Atmospheres that Americans face a rise of 70% in summertime ozone levels by 2050.
Ozone is a form of oxygen...