road

The Incas and their Hand-built Roads

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An exhibition at the National Museum of the American Indian concludes that the ancient Incas were great environmentalists. PHOTO: BBC

An exhibition at the National Museum of the American Indian concludes that the ancient Incas were great environmentalists. PHOTO: BBC

The Inca Road is one of the most extraordinary feats of engineering in the world. By the 16th Century it had helped transform a tiny kingdom into the largest empire in the Western hemisphere. And to the envy of modern engineers, substantial parts of the 24,000-mile (39,000-km) network survive today, linking hundreds of communities throughout Argentina, Bolivia, Chile, Colombia, Ecuador and Peru. Incredibly, it was constructed entirely by hand, without iron or wheeled transportation. A new exhibit at the Smithsonian Institution in Washington DC shows why the Incan kingdom built a lasting infrastructure.

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China, What Will it Be?

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China recently announced plans to build a 5,300 km railway linking the Atlantic with the Pacific, cutting through the heart of the Amazon jungle in Brazil and Peru. PHOTO: Andrew Snyder

Rail or road – what is the best mode of transport for free flow of goods from Brazil to China? PHOTO: Andrew Snyder

China recently announced plans to build a 5,300 km railway linking the Atlantic with the Pacific, cutting through the heart of the Amazon jungle in Brazil and Peru. Environmental groups are concerned that the railway will threaten sensitive ecosystems, wildlife and indigenous peoples. Indeed on the face of it, this would be a disaster for conservation in the most biologically rich place on Earth. But is a train line in fact the lesser of two evils?

Roads bring access to previously remote areas – and consequently bring down a cascade of problems on tropical forests. Logging, mining, and hunting result in the destruction of forests, all paving the way for their complete conversion to agriculture. Indeed, in the Amazon 95% of deforestation occurs within 5km of a road. Train lines on the other hand are usually state-controlled and more easily regulated. The proposed line will cost an estimated US$10 billion to build and will reduce the cost of shipping oil, iron ore, soya, beef and other commodities from Brazil and Peru to Asian markets.

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