The current debate surrounding coal is generally one of how long it will continue to play a role in the world's energy mix before it is replaced by cleaner alternatives, but the coming years may see a deficit in seaborne markets for the polluting fuel.
Teck expects larger proportion of coal sales in fourth quarter to be non-premium, reducing average realized price to about 85 percent of benchmark prices.
The filing cited Anton Colbert of Cook County, Illinois, as lead plaintiff but his action acts in the name of “hundreds or thousands of members in the proposed class.”
India's top court on Tuesday banned the use of petroleum coke, a dirtier alternative to coal, in and around New Delhi in a bid to clean the air in one of the world's most polluted cities.