Emissions goal 'will cost $30b'

Harrison Wang, a 28-year-old audio engineer, has been thinking about putting his compact car in storage ever since his fuel bill started rising as a result of the government's deregulation of the oil price.

And now, after the Chinese government told the world it will cut carbon intensity by 2020 by a hefty 40 to 45 percent, he is expecting gasoline for his 0.8- liter car will cost a lot more than the 400 yuan ($59) he currently spends each month.

"I'm already driving a low-emission car but, if the cost of fuel continues to rise, I might have to stop driving," he said.