Scientists offer new theory for largest known mass extinction

The largest mass extinction in the history of the earth could have been triggered off by giant salt lakes, whose emissions of halogenated gases changed the atmospheric composition so dramatically that vegetation was irretrievably ...

Researchers get new view of how water and sulfur dioxide mix

High in the sky, water in clouds can act as a temptress to lure airborne pollutants such as sulfur dioxide into reactive aqueous particulates. Although this behavior is not incorporated into today's climate-modeling scenarios, ...

Low-cost sensors gather air pollution data

(Phys.org) —Epidemiologists' understanding of the relationship between exposure to airborne pollutants and a range of health conditions, such as cardiovascular disease and asthma, has grown increasingly precise in recent ...

China's thick smog arrives in Japan

The suffocating smog that blanketed swathes of China is now hitting parts of Japan, sparking warnings Monday of health risks for the young and the sick.

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