Union praises Peabody's North Goonyella efforts.
Class actions pose a concern for miners.
Tells mine operators to review their employment arrangements.
The permanent and contract workforce was given the "option" to take annual leave or attend work.
The CFMEU said its safety inspectors had been raising the alarm on this issue for years.
The Federal Court found that Skene could not properly be considered a casual.
Coal use is in declining in many parts of the world, the CFMEU says.
The CFMEU will have a big influence on Shorten's position.
Open cut coal mine workers should also be screened for black lung.