Where is Bruce Campbell when you need him? Obscure references aside, I am pretty glad that I didn't decide to go Europe this month. Slate has a good explainer on the Ash Cloud complete with how to pronounce its source. It has been a pretty eventful time, geology-wise with earthquakes in Haiti, Chile, Mexico, and China, and now we are reminded that volcanoes can be very disruptive.
I am not a scientist, but I am curious--can these kinds of eruptions, which create clouds that cool the planet, at all off-set the global warming trend? If so, would that imply that we should trigger some? I wonder if mad scientists are listed somewhere.