Members across the political spectrum have recognised that each party has a shared responsibility to make this happen, and that action on a number of fronts is needed.
Mae Aelodau ar draws y sbectrwm gwleidyddol wedi cydnabod bod gan bob plaid gyfrifoldeb ar y cyd i sicrhau bod hyn yn digwydd, a bod angen gweithredu mewn nifer o feysydd.