As Europe and the U.S. fret over a small eruption in Iceland, a far larger volcanic eruption is taking place in Papua New Guinea. And unlike the Icelandic volcano, which merely has the potential to reroute trans-Atlantic flights, the eruption of Mount Tavurvur is already causing damage and threatening lives as well as disrupting international air travel. Mount Tavurvur, which is part of the larger Rabaul caldera, blasted enough ash into the stratosphere on Friday that Qantas Airlines rerouted flights between Sydney and Tokyo, as well as Sydney and Shanghai, to avoid flying through the ash cloud. Volcanic ash is hazardous to jet engines, and can cause them to fail mid-flight. via Mashable.