A volcanic eruption in Iceland is spreading ash across the skies in Northern Europe causing flights in six continents to and from Europe to be cancelled as they cannot fly through volcanic ash. This is frustrating as there are not that many flights from Europe to other parts of the world as there are to the United States.
At this point it is mostly northern Europe that is affected. Cities like Madrid, Rome and Athens aren't at this point. My question is why they can't send more flights to cities in Southern Europe and then require travelers to take trains. Europe has such an effective rail system that taking the train from one city to another is not a major hardship. It might result in taking overnight trains but if that is the alternative travelers will have to deal with it. is it possible for any of the flights to circumvent the Great Circle Route or does the ash travel not make a difference?