Mae'r refeniw a godir o'r Cynllun Masnachu Allyriadau yn llifo i San Steffan hefyd ond nid oes gennym dryloywder eto o ran sut y defnyddir y refeniw hwn i gefnogi datgarboneiddio yng Nghymru. Mae Llywodraeth Cymru wedi rhoi arian – gyda thros hanner ein cyllideb gyfalaf wedi'i dyrannu i fynd i'r afael â'r argyfwng hinsawdd – ond mae angen i ni weld yr un lefel o ymrwymiad gan Lywodraeth y DU nawr.
The revenues raised from the Emissions Trading Scheme flow to Westminster too but we do not yet have transparency over how these revenues are used to support decarbonisation in Wales. The Welsh Government has put our money where our mouth is – with over half of our capital budget allocated to tackling the climate emergency – but we now need to see the same level of commitment from the UK Government.