BBC: China’s coal industry has hidden annual costs of $250bn (£159bn) in terms of damage to health and the environment, a report by Chinese experts says. The report said pollution affected water, land and air around mines. It also said the burning of coal led to emissions of mercury and acid rain, and mining accidents killed nearly 3,800 people and injured many more in 2007. The report said coal prices would have to rise by around 25% to reflect the true cost to Chinese …