Coal licences may be needed in wholly exceptional circumstances and each application will be decided on its own merits, but the presumption will always be against coal extraction.
Mae’n bosibl y bydd angen trwyddedau glo o dan amgylchiadau cwbl eithriadol, a gwneir penderfyniad ar bob cais ar sail ei rinweddau unigol, ond bydd y rhagdybiaeth bob amser yn erbyn echdynnu glo.