However, the CCC provided an indication of the potential impacts arising from the net zero transition in their December 2020 advice [ 3 ].
Fodd bynnag, darparodd y Pwyllgor ar Newid Hinsawdd syniad o’r effeithiau a allai ddeillio o’r cyfnod pontio sero net yn eu cyngor ym mis Rhagfyr 2020 [ 3 ].