Vehicles, not farms, are likely source of smog-causing ammonia

Agriculture has long been blamed for smog-causing ammonia in the atmosphere, but vehicle tailpipes actually are a more important source of ammonia's contribution to the haze that hovers over big cities, according to new research ...

Coal dust kills 23,000 per year in EU: report

Lung-penetrating dust from coal-fired power plants in the European Union claims some 23,000 lives a year and racks up tens of billions of euros in health costs, an NGO report said Tuesday.

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