Mae gan Gymru waddol o dros 2,500 o domenni glo cyn datganoli ac oherwydd effeithiau cynyddol newid yn yr hinsawdd, mae'r tomenni hyn bellach mewn mwy o berygl o lithro. Bydd Llywodraeth Cymru hefyd yn darparu cyllid i gefnogi gwaith cynnal a chadw hanfodol ac i ddatblygu rhaglen adfer yn y dyfodol, gyda buddsoddiad cyfalaf ychwanegol o £4.5m a chyfanswm buddsoddiad cyfalaf o £44.4m. Mae'n dilyn penderfyniad Llywodraeth y DU i beidio â darparu cyllid ei hun yn adolygiad Gwariant mis Hydref.
Wales has a legacy of over 2,500 coal tips pre-dating devolution and due to the growing impacts of climate change these tips are now exposed to increased risks of slippage. The Welsh Government will also provide funding to support essential maintenance works and to develop a future reclamation programme, with an additional £4.5m and total capital investment of £44.4m. It follows the UK Government’s decision not to provide funding of its own in October’s Spending Review.