We have been clear that Wales needs additional powers to implement the policies needed to reach net zero and to do so in a way that supports a just transition.
Rydym wedi bod yn glir bod angen pwerau ychwanegol ar Gymru i weithredu’r polisïau sydd eu hangen i gyrraedd sero net ac i wneud hynny mewn ffordd sy’n cefnogi pontio teg.