Why so little is known about the effects of erupting volcanos on air travel
NORTHERN Europeans will not forget the name Eyjafjallajokull in a hurry, even if they may have trouble pronouncing it.
Monday April 19th marked a fifth day of jet-free skies over a huge swathe of the continent as a result of the eruption of the Icelandic volcano, which began pumping large quantities of ash into the sky last Wednesday.


