[Windflier]

There are still ways to dodge around the dust cloud, like going to its south. Or at more expense, go over the Orient and Pacific. Routes and perhaps infrastructure will need to adapt.

Sure, air travel routes can be rerouted to avoid the worst of the ash fall, but if these volcanoes start belching with any regularity, we're talking crop failures and famine, not to mention the ruination of all that makes life possible. Whole regions of Western Europe could become wastelands if this continues. It's happened before.

[HiTech RedNeck]

Ironic that these volcanoes started acting up after all the hue and cry about globull warming. We may wish! (Modern botanic science might yet furnish us with cold-tolerant crop plants.)