Diffyg rhew yn yr Arctig, cysylltiadau Cymreig Charles Dickens a'r stori fer fuddugol gyntaf. Global warming in the Arctic and Charles Dickens' Welsh connections. Show more
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Diffyg rhew yn yr Arctig, cysylltiadau Cymreig Charles Dickens a'r stori fer fuddugol gyntaf. Global warming in the Arctic and Charles Dickens' Welsh connections. Show more
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
