China's Coal Problem
Choked with smog that shut down roads, schools, and its main airport, the city of Harbin (map) this week offered a striking reminder that China has a long way to go in addressing the hazards caused by its dependence on coal.
Visibility in the northeastern city of more than 10 million people reportedly was reduced in places toless than 65 feet (20 meters) as coal-fired heating systems ramped up for the winter months. Officials also pointed to farmersburning crop stubble and low winds as additional causes for the pollution crisis.