08:30Sunday SequenceSt. Columba, World Population and ErdoğanBBC Radio Ulster Duration: 1 hour, 45 minutes Sun 16th Jul 2017, 08:30 on BBC Radio FoyleRoisin McAuley and guests debate the week's religious and ethical news and explore the world of culture and ideas.GenresFactualArts, Culture & the MediaReligion & EthicsFormatsDiscussion & TalkBrandSunday Sequence Source: BBC Online