18:05World Have Your SayWHYS: Extreme World - rich and poorBBC World Service Duration: 55 minutes Wed 1st Dec 2010, 18:05 on BBC World Service OnlineAvailable for over a yearListen nowAs part of the BBC Extreme World series, we hear about global extremes of rich and poor from Sierra Leone to Australia.GenresNewsFormatsDiscussion & TalkBrandWorld Have Your Say Source: BBC Online