In December 2020 Welsh Government received detailed, sector by sector advice from the Climate Change Committee and a recommendation to set a net zero target for 2050.
Ym mis Rhagfyr 2020, derbyniodd Llywodraeth Cymru gyngor fesul sector gan y Pwyllgor Newid Hinsawdd, ac argymhelliad i bennu targed o sero net ar gyfer 2050.