Word: ashes
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...some activity, then a pause. The hard part is pinpointing where it first starts up. We use a graduated alert system. Right now, Redoubt Volcano is at orange. At orange, the military might move some planes out of a vulnerable airport. I read that trucking companies are buying ash filters. When it's red, we hope to give them hours of warning...
...lava, flowing mud. Mudflows can go quite a distance - 100 km - down river valleys. If you live farther away, you're not going to be directly affected by those hazards, but you could very well be affected by the ashfall, which can travel a distance of hundreds of miles. Ash has also erupted with great force into the stratosphere. That's where jets are flying, and encounters between aircraft and ash clouds can be damaging and life-threatening. This ash is not like ash from a fireplace: it's little, pulverized pieces of volcanic glass that can melt...
...minimizing economic and social disruption during the period of unrest surrounding an eruption. If you've got volcano unrest and you don't know the extent of the eruption, you really tend to overreact when you don't need to. We can also give practical information - telling people about ash flow or when a mudflow is coming down a river valley - that has really high stakes. In 1985, an entire town in Colombia, Armero, was obliterated and [about] 23,000 people were buried alive when a relatively small eruption melted snow and ice on a volcano and sent it rushing...
...reform of DOD’s national security export controls. His colleagues at the Kennedy School said they were optimistic about his upcoming tenure in DC. “The Belfer Center [for Science and International Affairs] and Harvard Kennedy School will have a difficult time filling the void Ash will leave, but he is setting such a wonderful example of what this school and center are about: putting policy into practice,” said Graham T. Allison ’62—a colleague of Carter’s at the Belfer Center?...
...deep) pit carved from the hill that exposes a cross section riddled with holes - like an ant farm pressed between panes of glass. He shows how looters dug wells, then tunneled horizontally when a promising layer was reached. (Looters, like archaeologists, know to look for signs such as ash or brick flooring for evidence of human habitation.) One such gallery has collapsed, so that it now seems just a jagged scar interrupting the smooth transition of history's layers. "It's like you are trying to read a book and some of the pages are missing," says Marquis. "Here...