A volcano on Iceland is throwing ash high up in the atmosphere, forming a cloud, or a 'lid' over the northern half of Europe, cancelling all air traffic. The cloud is 6 to 8 kilometers up, and first I thought it wasn't noticeable on ground level. Wrong -- it is noticeable, in the light.

Now, why is the camera at home every time you stumble on spectacular shots? I can't show what I saw, but I can describe it. Yesterday, there were some really interesting formations of clouds, with gaps between them. Some clouds rained, others did not, and the sun shone brightly on this towering landscape in the sky. I was looking at the clouds, as we drove over a hill, to see how atmospheric perspective affected the colours, when I noticed that the more distant clouds and rains were swept in a glorious golden glow -- three hours before sunset. Ooooo, this is unusual, I thought. Then I noticed a certain greyed character to the light. You know how clouds shine brilliantly white where the sunlight hits them. This time, they didn't, they shone greyish yellows and oranges, and surprisingly enough the light on one cloud was a greyish yellow-green, clearly greenish in cast, which is highly unusual here.

The sunlight filtered through a 2 km thick layer of very fine ash is affected. What differences do you experience, if you're in the affected zone of Europe?