Microbiologists say a species of bacteria was responsible for iron deposits in the sedimentary layers that run hundreds of kilometres deep in the earth

The US senate is in a dilemma because every alternative they have thought up to the contentious energy tax has received loud protests from some section of the American public.

Plants grow taller and faster if sprayed with a solution of methanol, claims an American farmer

The proposed energy tax has run into heavy weather in Europe, despite strong backing from Denmark, Germany and the Netherlands.

Variations in solar radiations contribute little to global warming and researchers say efforts to check the phenomenon must focus on greenhouse gases.

A NEW cryogenic system for industrial cleaning, using "dry ice" or solidified carbon dioxide, has been developed by Distillers MG, which is part of the German Messer Griesheim industrial gas group.

THE BRANDT Commission in 1980 had called for a world "based less on power and status, more on justice and contract; less discretionary, more governed by fair and open rules". Shridath

Buses in the northern and western parts of the country may soon run on a mixture of diesel and natural gas

LARGESCALE use of CNG as an automotive fuel can give breathing space to people in the heavily-polluted metropolitan cities of India. Motor vehicles are said to be responsible for 60 per cent

THIRTY years of deforestation in the temperate regions has caused more pollution than 140 years' use of forests in the tropics. When' temperate forests were cut down in the 19th century by the

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