The Icelandic volcano ‘Eyjafjallajokull’ (please don’t ask me to pronounce that) continues to spread ash over Europe, grounding airplanes and shutting down airports for a second day.  The Guardian has a slideshow chart of the evolution of the ash cloud from the initial eruption, based on Met Office data.

Eyjafjallajokull : Icelandic ash cloud over Europe | World news | guardian.co.uk.