Princeton scientist solves air quality puzzle: Why is ozone pollution persisting in Europe despite environmental laws banning it?

An international team led by atmospheric scientist Meiyun Lin found the surprising chain of causes: As global climate change leads to more hot and dry weather, the resulting droughts are stressing plants, making them less able to remove ozone from the air. In a new study published today in Nature Climate Change, Lin and her colleagues demonstrated that vegetation feedbacks during drought worsen the most severe ozone pollution episodes.