To mark Impact Journalism Day, Hugh Linehan meets some people involved in projects aimed at creating sustainable social change. First Hugh chats with NCAD graduate Mark O'Meara's project is a novel solution to the problem of how to help homeless people shy away from handing over small change Then he sits down with Paul O'Hara of ChangeX, a "platform of proven ideas for anyone who wants to strengthen their community", Tony Geoghegan of the Merchant's Quay drug harm prevention project, and Sarah Keane CEO of Swim Ireland to talk about their experience in changing people's lives for the better.