Wood-burning sets off pollution alarm bells in Athens

Air pollution in Athens has surged in recent days because of people choosing wood over more expensive fuels to heat their homes in the grips of a continuing economic crisis, the environment ministry said Friday.

Beijing air pollution off the charts, US says

Thick smog blanketing Beijing went "beyond" measurable pollution levels on Monday, the US embassy said, as a Chinese official warned people to stay indoors and avoid outdoor activities.

First-time direct proof of chemical reactions in particulates

Researchers at the Paul Scherrer Institute PSI have developed a new method to analyse particulate matter more precisely than ever before. Using it, they disproved an established doctrine: that molecules in aerosols undergo ...

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