WHO sets guidelines to reduce indoor pollution deaths

The World Health Organization on Wednesday announced its first-ever guidelines for indoor air pollution related to cooking, heating and lighting, a problem estimated to kill more than four million people per year.

Trees contribute to cleaner air in cities

Air pollution levels vary greatly between different places in Gothenburg. This is the finding of a new study led by researchers at the University of Gothenburg, which concludes that trees contribute to cleaner air in cities.

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