Ministers across Wales, Northern Ireland and Scotland have united to call for immediate action from the UK Government to tackle this cost-of-living crisis.
Mae Gweinidogion ledled Cymru, Gogledd Iwerddon a’r Alban wedi uno i alw am weithredu ar unwaith gan Lywodraeth y DU i fynd i’r afael â’r argyfwng costau byw hwn.