The exhaust from diesel-fuelled vehicles, wood fires and coal-driven power stations contains small particles of soot that flow out into the atmosphere. The soot is a scourge for the climate but also for human health. Now ...
Jun 27, 2012
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If the human race keeps growing fatter at American rates, the Earth may face a rise in food demand equal to that of nearly a billion extra people, British researchers warned on Monday.
Jun 18, 2012
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