Olafur Eliasson
Green River, Stockholm, Sweden, 2000

Green River, Moss, Norway, 1998

‘One Friday at half past one there I was on the bridge with Emile and a bag full of red powder and people starting to stare at us. I hesitated for a moment then emptied the bag out over the parapet and the wind whipped up this enormous red cloud. I could literally feel people in cars slowing down, the cars went all quiet. And there was this cloud, floating over the river like a layer of gas. When it came in contact with the water, all of a sudden the river turned green, it was like a shock wave. There was a crowded bus ten metres a way and everybody was staring at the water. I told Emile we should maybe move on, as if everything was perfectly normal, then I carefully put the bag in a trashcan, as if colouring the centre of Stockholm was the kind of thing I did every day. I went down to IASPIS and when I came out again my heart started jumping up and down like mad: the whole length of the river was completely green and all these people had stopped to look at it. Next day it was all over the front page of the papers: “The river turned green”. The colorant was absolutely harmless and there was no pollution whatsoever’.

Abstract of a conversation between Hans Ulrich Obrist and Olafur Eliasson, 2002