As anyone under 60 knows, there are quite a few art galleries in the virtual world Second Life. One of them has photographs from the series Running the numbers by Seattle based photographer Chris Jordan. As the art world stamps its massive carbon footprint on the world flying from art fair to art fair, readers may find this image discomforting for all sorts of reasons. It is made up of 106,000 aluminium cans, the number used in the US every thirty seconds. Jordan’s original photographic print is 1.53 x 2.34 metres (60 x 92”).