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Environment
ChinaPeople & Culture
Brahma Chellaney

Opinion | No time to waste in saving the world’s rivers from drying up – especially in China

  • Brahma Chellaney writes that excessive damming and drastic overuse of water resources are causing the world’s major waterways to run dry

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Vessels head for the lock of the Three Gorges Dam in Yichang, in central China's Hubei province. Sediment build-up in the dam’s reservoir stems from silt flow disruption in the Yangtze River, Brahma Chellaney writes. Photo: Xinhua

Thanks to excessive damming and drastic overuse of water resources, an increasing number of major rivers across the world are drying up before reaching the sea.

Nowhere is this more evident than in China, where the old saying, “Follow the river and it will eventually lead you to a sea,” is no longer wholly true.

While a number of smaller rivers in China have simply disappeared, the Yellow River – the cradle of the Chinese civilisation – now tends to run dry before reaching the sea.

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This has prompted Chinese scientists to embark on a controversial rainmaking project to help increase the Yellow’s flow. By sucking moisture from the air, however, the project could potentially affect monsoon rains elsewhere.

For large sections of the world’s population, major river systems serve as lifelines. The rivers not only supply the most essential of all natural resources – water – but also sustain biodiversity, which in turn supports human beings.

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Yet an increasing number of rivers, not just in China, are drying up before reaching the sea.

A major new United Nations study published early this month offers grim conclusions: human actions are irremediably altering rivers and other ecosystems and driving increasing numbers of plant and animal species to extinction.

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