Although considerable progress has been made towards the complete eradication of polio by the year 2000, the fact remains that polio cannot be eliminated anywhere unless it is eliminated everywhere.

Transport is an essential human activity and has a critical role in social development. But the environmental costs of this energy-intensive sector are also critical. It generates 20 per cent of

The urban population is rapidly growing the world over. Cities draw migrants with the promise of

The re-emergence of infectious diseases has become a matter of global concern; about 17 million of the 52 million deaths last year were classified as owing to infectious diseases. Changes in

Industrial advancement has no doubt improved the standard of living of human beings, but in the process the crucial environmental balance established by nature over a millenium has been inadvertantly

The origin of greenhouse gas emissions is an important issue in relation to the need for devising policy options to minimise potential global climate change and its impacts. The best known of the

Travel and tourism is the world's largest industry, transporting more than 528 million people internationally, employing 211.7 million people, and generating US $322,000 million in receipts in 1994.

The future looks dim, literally. Over the next generation, electricity demand threatens to outstrip production capacity; The North and almost all central European nations will have to work against

If producing cultural products, such as books, newspapers, movies or radios, reflects a nation's degree of progress, then the developing world trails far behind. And the gap has decreased only

Is your electricity supply regular? Is your drinking water free of germs? Do your telephones work smoothly? These questions would evoke a unanimous No from most of us. It is now a widely held

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