Mon, Jun 21, 2021 page7

• One hundred years of devastation

  China’s growing network of mega-dams threatens not just its environment and people, but tightens its grip on neighboring countries

  • By Brahma Chellaney
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  On July 1, the Chinese Communist Party (CCP) plans to stage a patriotic extravaganza to celebrate the 100th anniversary of its founding. Among the achievements to be celebrated is the Baihetan Dam, located on the Jinsha River, on the southeastern edge of the Tibetan Plateau. The dam is scheduled to start operations on the same day.

  The CCP loves a superlative. It is the world’s largest manufacturer and exporter, with the world’s largest foreign reserves. It boasts the world’s highest railway, and the highest and longest bridges. It is also the world’s most dammed country, with more large dams than the rest of the world combined, priding itself on having the world’s biggest water-transfer canal system.

  The dams themselves are often superlative. The Three Gorges Dam is the world’s largest power station, in terms of installed capacity, and the Baihetan Dam is billed as the world’s biggest arch dam, as well as the world’s first project to use a giant 1 gigawatt (GW) hydroturbine generator. With 16 such generators, Baihetan ranks as the world’s second-largest hydroelectric dam (behind the Three Gorges Dam, at 22.5GW).

  

  Illustration: Yusha

  All of this makes great fodder for CCP-fueled nationalism — essential to the party’s legitimacy. China often flaunts its hydroengineering prowess, including its execution of the most ambitious inter-river water transfers ever conceived, to highlight its military and economic might. (To be sure, there are also superlatives that China will not be flaunting at its upcoming centenary — beginning with the world’s largest network of concentration camps.)

  However, China’s dams are not merely symbols of the country’s greatness. Nor is their purpose simply to ensure China’s water security, as the CCP claims. They are also intended as a source of leverage that China can use to exert control over downstream countries.

  The CCP’s 1951 annexation of the water-rich Tibetan Plateau — the starting point of Asia’s 10 major river systems — gave China tremendous power over Asia’s water map. In the ensuing decades, the country has made the most of this riparian advantage. For example, by building 11 giant dams on the Mekong River, just before it crosses into Southeast Asia, China has secured the ability to turn off the region’s water tap.

  The CCP is failing to consider the high costs of its strategy, which extend far beyond political friction with China’s neighbors. The party’s insatiable damming is wreaking environmental havoc on Asia’s major river systems, including China’s dual lifelines: the Yellow and the Yangtze.

  Giant dams damage ecosystems, drive freshwater species to extinction, cause deltas to retreat and often emit more greenhouse gases than coal-fired power plants. More than 350 lakes in China have disappeared in the past few decades and, with few free-flowing rivers left, river fragmentation and depletion have become endemic.

  The social costs are no less severe. For starters, given shoddy construction in the first three decades of CCP rule, about 3,200 dams collapsed by 1981, with the 1975 Banqiao Dam failure alone killing up to 230,000 people. Of course, China has raised its dam-building prowess dramatically since then, and Baihetan was completed in just four years. As its early dams age and weather becomes increasingly extreme, catastrophic failures remain a serious risk.

  Moreover, dam projects have displaced an enormous number of people. In 2007, just as China’s drive to build mega-dams was gaining momentum, then-Chinese premier Wen Jiabao (溫家寶) revealed that, since the CCP’s rise to power, China had relocated 22.9 million people to make way for water projects — a figure larger than the populations of more than 100 countries. The Three Gorges Dam alone displaced more than 1.4 million people.

  This does not seem to bother the CCP much. Baihetan’s inundation of vast stretches of a sparsely populated highland has forced local residents, mostly from the relatively poor Yi nationality, to farm more marginal tracts at higher elevations. As China shifts its focus from the dam-saturated rivers in its heartland to rivers in the ethnic-minority homelands that the CCP annexed, China’s economically and culturally marginalized communities will suffer the most.

  There is little doubt that this will happen. The CCP has set its sights on building the world’s first super-dam, on the Yarlung Zangbo River — better known as the Brahmaputra River — near Tibet’s heavily militarized border with India.

  The Brahmaputra curves around the Himalayas in a U-turn and forms the planet’s longest and deepest canyon, as it plunges from an altitude of 2,800m toward the Indian floodplains. Damming it means building at an elevation of more than 1,500m — the highest at which a mega-dam has ever been built.

  Because the gorge holds the world’s largest untapped concentration of river energy, the super-dam is supposed to have a hydropower generating capacity of 60GW, nearly three times that of the Three Gorges Dam.

  The fact that the gorge is one of the world’s most biodiverse regions seems to be of little concern to the CCP, which is far more interested in being able to use water as a weapon against India, its Asian rival. China has set the stage for construction, completing a highway through the canyon and announcing the start of high-speed train service to a military town near the gorge. When it opens, the route will enable the transport of heavy equipment, materials and workers to the remote region, which was long thought inaccessible because of its treacherous terrain.

  The CCP views its centenary as cause for celebration, but the rest of the world should see the party for what it is: repressive, genocidal and environmentally rapacious. And it should prepare for what the CCP’s second century might bring.

  Brahma Chellaney is a professor of strategic studies at the New Delhi-based Center for Policy Research and a fellow at the Robert Bosch Academy in Berlin.

  Copyright: Project Syndicate
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