The sun sets against ash from the Eyjafjällajökull volcano in Iceland this week. The volcano has been sending up new plumes of ash, disrupting air traffic in Ireland and forcing some trans-Atlantic flights to detour. The new cloud is currently tracking towards the west coast of the Iberian Peninsula. Last month, ash from Eyjafjällajökull was responsible for closing much of the airspace over Europe and causing international air-traffic chaos.