Summarise the most significant impacts for the people, culture and Welsh language, economy and environment of Wales, expected as a result of the proposed action.
Crynhowch yr effeithiau mwyaf arwyddocaol a ddisgwylir o ganlyniad i'r cam gweithredu arfaethedig, ar bobl a diwylliant Cymru, ar y Gymraeg, ac ar economi ac amgylchedd Cymru.