A prototype solar device that produces enough hot air from the sun's rays to drive the turbines of a 50 kw power station has brought the prospect of cheap, solar-generated electricity a step closer.

The global fish catch now appears to have reached the upper limits of sustainability. More than one billion

Are you happy with your city? The International Finance and Trade Centre, Ahmedabad, tried to find an answer to this question from after surveying 100 upper-income households in 12 Indian cities to

In 1996 there has been a significant development in drugs for the treatment of AIDS. Even as Americans and Europeans are optimistic about the success of anti-AIDS drugs, a report by United Nations

Public understanding of science and technology lags well behind public interest in these fields in most

There has recently been an upsurge of speculation about the future of the Indian tiger. The number of tigers in Indian reserves increased by 39 between 1989 and 1993. But this includes tigers in

latest figures released by the health department of China show that deaths due to air pollution are increasing every year. Nearly 1,000 more people died of respiratory diseases in 1995 than in

A lot of debate over Indian science & technology (s&t) is focused around funding. Currently, India spends about 0.8 per cent of its gross national product on s&t, down from almost one per cent

The year 1995 saw a rise of 1.8 per cent in global energy consumption, the highest annual growth rate since 1989 and more than double the average rate of the past five years. The main boost came

Nearly 82 per cent of ozone depleting substances (ods) responsible for most of the harm done to the ozone layer are anthropogenic in nature, related to the West's consumptive lifestyle. If their

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