To ensure the legacy of coal mining does not continue to pose a risk to public safety, a long-term reclamation and remediation programme, over a 10 to 15 year period, is required.
Er mwyn sicrhau nad yw gwaddol cloddio glo yn parhau i beri risg i ddiogelwch y cyhoedd, mae angen rhaglen adfer ac adfer hirdymor, dros gyfnod o 10 i 15 mlynedd.