Fuel's dirty face
The consequences of the coal boom are severe, both in the shadow of the plants and further afield, writes Michael Casey
BEHIND THE NEWS
Michael Casey
Nov 06, 2007
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It takes five to 10 days for the pollution from China's coal-fired plants to make its way to the US, like a slow-moving storm. It shows up as mercury in the bass and trout caught in the Willamette River in the western state of Oregon. The pollution increases cloud cover and raises ozone levels. Along the way, it contributes to acid rain in Japan and South Korea and health problems everywhere from Taiyuan , in Shanxi province , to North America.
This is the dark side of the world's growing use of coal. Cheap and abundant, coal has become the fuel of choice in much of the world, powering economic booms on the mainland and in India that have lifted millions of people out of poverty. Worldwide demand is projected to rise by about 60 per cent by 2030, to 6.9 billion tonnes a year, most of it going to electrical power plants.
But the growth of coal-burning is also contributing to global warming, and is linked to environmental and health issues ranging from acid rain to asthma. Air pollution kills more than 2 million people prematurely every year, according to the World Health Organisation.
"Hands down, coal is by far the dirtiest pollutant," said Dan Jaffe, an atmospheric scientist at the University of Washington who has detected pollutants from Asia at monitoring sites on Mount Bachelor in Oregon and Cheeka Peak in Washington state. "It's a pretty bad fuel on all scores."
The dilemma facing the mainland is evident in places such as Taiyuan and the surrounding province, the top coal-producing region. Almost overnight, coal turned poor farmers in the city of 3 million into Mercedes-driving millionaires, known derisively as baofahu or the quick rich. Flashy hotels display chunks of coal in their lobbies and sprawling malls advertise designer goods from Versace and Karl Lagerfeld.
Real estate prices have doubled, residents say, and construction cranes fill the skyline.
A museum in Taiyuan celebrates all things coal. Amid photos of smiling miners, coal is presented as the foundation of the mainland's economic development, credited with making possible everything from the railway to skincare products.
"Today, coal has penetrated every aspect of people's lives," the museum says in one of many cheery pronouncements. "We can't live comfortably without coal."
Yet the corn lining a highway outside the city is covered in soot. The same soot settles on vegetables sold at the roadside. Thick, acrid smoke blots out the morning sun. At its worst, the haze forces highway closures and flight delays.
Taiyuan, dubbed the world's most polluted city in the 1990s, is no longer thought to be the worst, thanks to various efforts including phasing out coal-burning boilers. But the level of pollutants in the air remains five to 10 times higher than levels in New York or London. Residents say they see blue skies on fewer than 120 days a year.
They shrug wearily when the talk turns to pollution, fearful that speaking out could get them in trouble. But when pressed, city dwellers' complaints tumble forth and expose a community held hostage by the soot.
Residents seal their windows to keep out the dirty air. Parents are warned not to let their toddlers play outside for fear of coal dust. Fruit and vegetables must be washed in detergent.
"I'm worried about my children," said a woman who lives in the shadow of a power plant and fertiliser factory. She would only give her surname, Zhang. "We worry about everything. If you get sick seriously, you will die."
Many complain of chronic sore throats and bronchitis, and there are cases of lung cancer and pulmonary fibrosis. A study by researchers from Norway's Centre for International Climate and Environmental Research found that Taiyuan's pollution raised death rates by 15 per cent and chronic respiratory ailments by 40 to 50 per cent.
"I feel terrible and I'm coughing all the time," said William Li, a retired engineer from Taiyuan. His father died of lung cancer and his son has tracheitis, an upper respiratory condition. "The coal produces electric power that we send to other provinces. But we are left with the pollution."
Apart from health problems, there is growing concern about the damage being wrought on some key heritage sites. A few years ago, the Leshan giant Buddha in Sichuan province started to weep. Or so some local people imagined when black streaks appeared on the rose-coloured cheeks of the towering 7th-century carving hewn into the sandstone cliffs.
The culprit was the region's growing number of coal-fired power plants and acid rain. Over time, the Buddha's nose turned black and curls of carved stone began to fall from its head.
"If this continues, the Buddha will lose its nose and even its ears," said Li Xiaodong, a researcher who has studied the impact of air pollution in Sichuan. "It will become just a piece of rock."
More than 80 per cent of the mainland's 33 UN-designated world heritage sites, including the Leshan statue, have been damaged by air pollution and acid rain, mostly from the burning of coal, according to Xinhua.
"The level of pollution that China is creating will be devastating to these monuments," said Melinda Herrold-Menzies, a professor of environmental studies at Pitzer College in Claremont, California.
Mainland officials are starting to acknowledge the downside of unbridled development. Qiu Baoxing, the vice-minister of construction, blamed the devastation of historic sites on "senseless actions" by local officials in pursuit of modernisation, the China Daily reported in June.
"They are totally unaware of the value of cultural heritage," he said, likening the destruction to that of cultural relics during the Great Leap Forward in the late 1950s and the Cultural Revolution from 1966 to 1976.
About 1,200km to the north, clouds of black dust coming off coal trucks have damaged the Yungang grottoes, a world heritage site in the heart of China's coal belt. Professor Herrold-Menzies expressed surprise that caves with such historical and archaeological importance would lie so close to "coal mines and an industrial nightmare of a city".
The 250 caves hold more than 50,000 statues of Buddha dating to the 5th century, their heights ranging from less than 2.5cm to 17 metres.
As visitors weave in and out of the caves, the damaged statues are easy to pick out. Their red, blue and yellow paint is faded, and they look as if they are wearing a black trench coat or skirt.
Under pressure to clean up major cities such as Shanghai and Beijing, particularly in the run-up to next year's Olympics, the central government is turning increasingly to provinces such as Shanxi to meet the country's power demands.
"They look at polluted places such as Taiyuan and say it's so polluted there it doesn't matter if they have another five power plants," said Ramanan Laxminarayan, a senior fellow at Resources for the Future, an American think-tank that found links between air pollution and rising hospital admissions in Taiyuan.
"I visited these power plants and there is no concept of pollution control," he said. "They sort of had a laugh and asked, `Why would you expect us to install pollution control equipment?'"
The mainand is home to 20 of the world's 30 most polluted cities, according to a World Bank report. Health costs related to air pollution total US$68 billion a year, nearly 4 per cent of the country's economic output, the report said. Sheng Huaren, a senior Chinese parliamentary official, said last year that acid rain had contaminated a third of the country. It is said to destroy crops worith some US$4 billion every year.
"What we're facing in China is enormous economic growth, and ... China is paying a price for it," said Henk Bekedam, China's WHO office chief. "Their growth isn't sustainable from an environmental perspective. The good news is that they realise it. The bad news is they're dependent on coal as an energy source."
But the costs go far beyond China. The soot from power plants boosts global warming because coal emits almost twice as much carbon dioxide as natural gas. Researchers from Texas A&M University said research showed that air pollution from China and India had increased cloud cover and major Pacific Ocean storms by 20 per cent to 50 per cent over the past 20 years.
Mercury, a byproduct of coal mining dispersed via waterways, is another major concern. "It's a global problem and right now China is a source on the rise," said Harvard University professor of atmospheric chemistry and environmental engineering Daniel Jacob. "If we want to bring down mercury levels in fish, then we have to go after emissions in East Asia."
A fifth of the mercury in the Willamette River came from China and other foreign sources, said Bruce Hope of the Oregon Department of Environmental Quality. Pregnant or nursing women who eat the fish put their babies at risk of neurological damage.
China has closed some polluting factories and says it will retire 50 gigawatts of inefficient power plants, or 8 per cent of the power grid, by 2010, according to the Pew Centre on Global Climate Change. The government has also mandated that solar, wind, hydroelectric and other forms of renewable energy provide 10 per cent of the mainland's power by 2010, and ordered key industries to cut energy consumption by 20 per cent.
President Hu Jintao , in a speech to a key party congress last month, promised a cleanup. But the mainland has fallen short of its national targets for using energy more efficiently, and coal remains a major energy source.
"Everyone knows coal is dirty, but there is no way that China can get rid of coal," said Zhao Jianping of the World Bank. "It must rely on it for years to come, until humans can find a new magic solution."
Robert Schock, director of studies at the World Energy Council, said that coal, which is cheap and abundant, would remain a crucial source of energy for many years.
In Shanxi, the authorities have pledged to close 900 coal mines and dozens of makeshift factories that process coal for the steel industry, according to Xinhua. The Asian Development Bank is providing more than US$200 million in loans to improve air quality in the province, through programmes to shift to cleaner-burning natural gas for household heating and a demonstration project to capture methane, a greenhouse gas released in coal mining.
Associated Press
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