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Desert fires cast a shadow over Asia: If Iraq blows up Kuwait’s oilfields they could blaze for a year or more. The resulting smoke could change the climate of the Middle East and stop India’s summer monsoon

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Life

A matter of life and patents

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A quantum leap to smaller chips: Semiconducting materials such as gallium arsenide are allowing physicists to create tiny devices tailored to work at the quantum level

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How to find oil without really trying: Everyone has heard of North Sea oil, but petroleum lurks, seeps and bubbles up in some of the most unexpected places throughout Britain

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Historical clues to conservation: Management techniques that reproduce old farming practices may yet save one of the last remaining heathlands in Britain

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Green futures on Wall Street: Environmentalists have won unlikely allies on Wall Street. Their campaigns have encouraged governments to spend more on reducing pollution. This has raised the stock market value of companies involved in cleaning up the envi

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Cold comfort in the crystal ball: Over a year ago, meteorologists predicted that the US would have a severe winter in 1990/91. Are they wrong again or have they at last discovered a sound basis for long-term forecasting?

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Physics

On the crest of a sunbeam

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Earth

A wild time at the zoo

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Iraq: nuclear secrets or rumours?

No one can be sure if Saddam Hussein is close to developing nuclear weapons, but many experts believe Iraq is still several crucial steps away from success

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Survivors from the primordial soup: Living stromatolites bear witness to the life their fossil forebears led 3500 million years ago. But the attention lavished on these fragile ecosystems could be their downfall

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Inquest on Soviet computing: In the mid 1960s, Soviet planners promised computers for everyone and a new era of wealth and efficiency. Now, the Gorbachev reforms have revealed the crippling inadequacy of these claims

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The universal constructer set: A new era in applied molecular biology has begun. Researchers have discovered a way of generating novel biopolymers with virtually unlimited potential

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The sugar coating on the protein: For years, biochemists looked on carbohydrate molecules as inert and insignificant. But these complex sugars play a crucial role in the activity of many proteins. They could be the key to new drugs for treating arthritis

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