In that consultation, the question asking for evidence and views on a phased ban found almost two thirds of respondents were in favour of such a ban.
Yn yr ymgynghoriad hwnnw, canfu'r cwestiwn a oedd yn gofyn am dystiolaeth a barn ar waharddiad graddol fod bron i ddwy ran o dair o'r ymatebwyr o blaid gwaharddiad o'r fath.