'Wick lamps account for huge carbon levels'
Researchers at UC Berkeley and the University of Illinois, found that 7 to 9 per cent of the kerosene in wick lamps
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Researchers at UC Berkeley and the University of Illinois, found that 7 to 9 per cent of the kerosene in wick lamps
First Published: Nov 29 2012 | 5:25 PM IST