China's dirty energy takes its toll
Original article: http://news.bbc.co.uk/1/hi/sci/tech/3996855.stm

But despite a fine, the factory has continued to pump out pollution, prompting the residents to launch a lawsuit.

The forces arrayed against them are more than just one factory, however.

This coke plant is playing a part in the modernisation whirling through China - one of the world's fastest-expanding economies with GDP growth of more than 9% in the last year.

The plant is a small cog in the supply chain, turning coal into coke which is then used as a key source of heat energy in the steel-making process.

Steel, in turn, is needed for the construction of new roads, buildings, cars and everyday home appliances for China's population - the world's biggest at 1.3bn.

Hungry for progress

The Chinese thirst for development means that coke is becoming an ever more valuable commodity, with one brokerage expecting Chinese demand to push prices up 60% in the next financial year.

This means there is a big market for the product, as well as a clear financial incentive to let polluting plants continue to operate.

The residents' lawyer, air pollution expert Liu Xiang, says in his experience these factors often influence the local government's behaviour.

"Often these [polluting] enterprises are the main industries and important taxpayers, so local governments don't want to see these enterprises closed down through court judgements because that would interfere with economic development. Sometimes the pressure [on us lawyers] from the local government is extremely great."

Global issue

It is a dilemma which underlies China's energy crisis and has wider global implications.

China does not have enough electricity to power its economic boom.

It suffered a record shortage of 30 million kilowatts this year, with many areas facing power cuts.

The International Energy Agency predicts the country will account for more than a fifth of the growth in world energy demand in the next 25 years - and for more than a quarter of the increase in greenhouse gas emissions.

Some two-thirds of the country's power comes from coal and coal products, the cheapest and dirtiest forms of energy.

This exacts a very real human toll - official figures say 400,000 Chinese citizens die a year from diseases related to air pollution, and, according to the World Bank, 16 of the 20 most polluted cities in the world are in China.

Cleaner technology

Klaus Toepfer head of the United Nations Environmental Programme says the struggle to move away from polluting forms of energy is a global challenge.

"The need to use fossil fuel right now is unavoidable," he said. "Globally up to 80% of energy supply comes from fossil fuel.

"What we have to do and can do is change the efficiency in fossil fuel use so we have more energy services from the same amount of coal.

"We have to make clean coal technology. We have to do what we can to fight classic pollutants like sulphur dioxide and mercury, and to capture carbon dioxide emissions."

When it comes to coke, new alternatives and cleaner techniques are being developed, such as a pulverised coal injection process.

But Karen Polenske from Massachusetts Institute of Technology, who has been researching coke plants in rural China, says new technologies won't necessarily mean an end to the use of coke.

"In order to industrialise, coke is going to have to play its important role for many years to come. A lot of people say this is going to go away as we are going to have substitutes. But coke is not going to go away."

Change ahead?

According to her research, the most polluting type of coke plants in China have largely been closed down, but those factories that have stayed open are producing much more coke than in the past.

However, this may change, as China's Ministry of Commerce has announced it will cut the output of coke by 20% next year in a bid to reduce pollution.

As for the future of the Tangshan plant, all attempts to interview the factory bosses were turned down.

Regardless of the difficulties they've been through, some of the residents are still optimistic about the future, like 48-year-old Zhang Shun.

Speaking under a pseudonym, he said he is now unable to work because he has a heart condition, which he blames on pollution from the plant.

"I still have hope," he says. "We've been in a struggle against the coke factory for the past few years, but these problems are always solved slowly.

"There are so many stories on environmental protection on television and in the press. Everybody thinks it's important nowadays, so I see a light at the end of the tunnel."