For all the worries about pollution from China, international climate experts are loath to criticize the country without pointing out that the average American still consumes more energy and is responsible for the release of 10 times as much carbon dioxide as the average Chinese. While China now generates more electricity from coal than does the United States, America's consumption of gasoline dwarfs China's, and burning gasoline also releases carbon dioxide.

An Insatiable Demand?

The Chinese are still far from achieving what has become the basic standard in the West. Urban elites who can afford condominiums are still a tiny fraction of China's population. But these urban elites are role models with a lifestyle sought by hundreds of millions of Chinese. Plush condos on sale in Shanghai are just a step toward an Americanized lifestyle that is becoming possible in the nation's showcase city.

Far from the Wu family in rural Shaanxi, the Lu Bei family grew up in cramped, one-room apartments in Shanghai. Now the couple own a large three-bedroom apartment in the city's futuristic Pudong financial district. They have two television sets, four air-conditioners, a microwave, a dishwasher, a washing machine and three computers. They also have high-speed Internet access.

"This is my bedroom," said Lu Bei, a 35-year-old insurance agency worker entering a spacious room with a king-size bed. "We moved here two years ago. We had a baby and wanted a decent place to live."

For millions of Chinese to live like the Lus with less damage to the environment, energy conservation is crucial. But curbing that usage would be impossible as long as China keeps energy prices low. Gasoline still costs $2 a gallon, for example, and electricity is similarly cheap for many users.

With Chinese leaders under constant pressure to create jobs for the millions of workers flooding from farms into cities each year, as well as the rapidly growing ranks of college graduates, there has been little enthusiasm for a change of strategy.

Indeed, China is using subsidies to make its energy even cheaper, a strategy that is not unfamiliar to Americans, said Kenneth Lieberthal, a China specialist at the University of Michigan. "They have done in many ways," he said, "what we have done."