Rita Duffy, Northern Ireland’s foremost artist, plans to tow a giant iceberg from the Arctic and moor it off Belfast. She says “allowing it to melt is about ‘thawing’ a place locked in a political and emotional deep freeze where divisions are firmer than ever. ‘A huge big mountain of ice seems to be the most eloquent way of describing where we are. There is a certain type of madness in Northern Ireland society, a denial of what has happened to us. Maybe it’s time to come out of denial and confront what has sunk us’.”