Denis O’Brien: he founded Digicel  in Jamaica in 2001, the company has grown across the Caribbean, central America and the south Pacific. Photograph; Dara Mac Dónaill

Denis O’Brien’s Digicel’s planned flotation is a signal that the business has arrived at a crossroads. Since he founded it with the launch of a new mo(...)

Lord and Lady Rosse of Birr Castle and Tom Roche of Just Forests with the poplar after hearing it had been accepted as Ireland’s nominee in the European Tree of the Year 2014 competition. Photograph: Just Forests

It may go down in history as the tree that died for Ireland. A giant grey poplar, it had stood for 200 years in the gardens of Birr C(...)