Fundamentally, it must also be effective in helping to tackle the climate and nature emergency by learning from the known solutions which are being delivered successfully elsewhere.
Rhaid iddo hefyd fod yn effeithiol wrth helpu i fynd i'r afael â'r argyfwng hinsawdd a natur trwy ddysgu o'r datrysiadau hysbys sy'n cael eu darparu'n llwyddiannus mewn llefydd eraill.