Guardian: China’s main source of power is so destructive that its social and environmental impact costs £160bn annually, warns a new report from green campaigners. The country is the world’s largest producer and consumer of coal, relying on it for more than 70% of energy production, compared with a global average of around 40%. The True Cost of Coal, published by Greenpeace, the World Wildlife Fund and The Energy Foundation, says by-products ranging from water pollution to mining deaths …