Despite improvements, China's air remains unsafe

Fine particulate matter (PM2.5) and ozone exposure are major public health problems in China. Although useful, atmospheric models used to analyze these and other air quality concerns over the years are expensive to run, limiting ...

Opinion: Environmental justice delayed has been justice denied

It has taken a very long time, but environmental justice has moved to the center of the environmental policy agenda. Here in New York City, the environmental justice movement spent decades fighting the siting of the North ...

Light amplification accelerates chemical reactions in aerosols

Aerosols in the atmosphere react to incident sunlight. This light is amplified in the interior of the aerosol droplets and particles, accelerating reactions. ETH researchers have now been able to demonstrate and quantify ...

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