Today, Deputy First Minister with responsibility for Climate Change, Huw Irranca-Davies confirmed targets had been met 12 months early.
Dywedodd y Dirprwy Brif Weinidog, sy'n gyfrifol am Newid Hinsawdd a Materion Gwledig, Huw Irranca-Davies, a agorodd y cynllun yn swyddogol heddiw: