Yng Nghymru mae deddfwriaeth arloesol fel Deddf Llesiant Cenedlaethau'r Dyfodol a Deddf yr Amgylchedd eisoes wedi sicrhau lle canolog i ddatblygu cynaliadwy a'r amgylchedd o fewn prosesau gwneud penderfyniadau ar draws y llywodraeth, ac rydym wedi cyflwyno nifer o egwyddorion amgylcheddol sy'n seiliedig ar yr arferion rhyngwladol gorau.
In Wales, ground breaking legislation such as the Well-being of Future Generations and Environment Acts have already placed sustainable development and the environment at the heart of decision-making across Government and we have introduced a number of environmental principles, drawn from international best practice.