It has been almost totally explained by the enormous increase in the coal burn at the global level.

BBC: The year in business: 2011

India and China have demonstrated an enormous appetite for coal, riding on a high level of industrialization and urbanization.

FORBES: Can Coal Exports Markets Make Up For Domestic Coal's Plunge?

Announcing a total of 590 redundancies, KPMG said that despite significant efforts in recent months, Scottish Coal had been unable to secure the level of investment required to enable the business to continue.

BBC: Open cast mining