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  • 30/10/2003

All-rounder: Installing filters on diesel engines is not only more expensive, but also worse for the environment than switching to liquefied petroleum gas (LPG). A paper by Eric Johnson, a Swiss-based scientist, argues that a switch-over to LPG is preferable under all circumstances. For instance, a shift to LPG in the UK would cut particle emissions by up to seven per cent. It would also result in 400 fewer hospitalisation and prevent 80 premature deaths over one year.

protective umbrella: Scientists from the National Research Centre for Mushroom, Himachal Pradesh, have developed a

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