News Main Animals Archaeology Dinosaurs Earth History Human Animal Space Tech   Getty Images |   Dirty Air Travels A diesel burning train emits black smoke in Beijing, China. Exhaust from diesel engines, sulfur from coal-fired power plants, and desert dust swirl into an insidious cocktail of of tiny particles that can spend weeks airborne. These particles waft overseas and across continents, killing some 380,000 people each year. | Discovery News Video   « back to article

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