The cancellation of trains includes 500 trips of express trains and 580 trips of passenger trains.

In north China's Inner Mongolia Autonomous Region, the rugged surface of an exhausted coal mine has received a major face-lift, newly populated by 1.12 million photovoltaic modules, beneath which numerous plants are flourishing.

China's central bank on Wednesday announced that it has increased the targeted re-lending quota for the coal industry by another 100 billion yuan (about 15.11 billion U.S. dollars) to support the clean and efficient use of coal.

Mongolia exported a total of 3.8 million tons of coal in the first four months of this year, down 48 percent year on year, Mongolian Customs General Administration said on Monday.

India has eased environment approvals for coal mine expansions to boost output amid fuel shortages that have triggered hours-long blackouts.

US coal production is forecast to increase this year, buoyed by a strong export market and inventory replenishment in the power generation sector, says the US Energy Information Administration (EIA).

In the first quarter, the coal production enterprises in Shaanxi province continued the output growth trend at the end of last year.

Reduced demand from greener China will hit Australia, Indonesia, study says.