GOOD is an online journal that asks the question "what is good right now?" One of the highlights is their "transparency" series of graphics and maps. The latest transparency shows how small the recent Eyjafjallajökull volcanic eruption in Iceland was compared to other historic volcanoes. The disruption to the economy and to air traffic was huge but as the graphic indicates we should expect much worse in the future.
The tall orange triangles on the map are "decade volcanoes." I've never heard that term either but according to the description page it means a volcano "currently noted to have a history of large eruptions and a proximity to populated areas." In other words if one of those blows it's really going to mess things up.
1 week ago