Emissions from the transport sector include those from cars, trucks, buses, taxis and railways within Wales along with our share of emissions from international aviation and international shipping.
Mae Allyriadau Cwmpas o’r sector trafnidiaeth yn cynnwys allyriadau o geir, tryciau, bysiau, tacsis a rheilffyrdd yng Nghymru, ynghyd â’n cyfran o allyriadau o awyrennau a llongau rhyngwladol.