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...clean coal" campaign was always more PR than reality - currently there's no economical way to capture and sequester carbon emissions from coal, and many experts doubt there ever will be. But now the idea of clean coal might be truly dead, buried beneath the 1.1 billion gallons of water mixed with toxic coal ash that on Dec. 22 burst through a dike next to the Kingston coal plant in the Tennessee Valley and blanketed several hundred acres of land, destroying nearby houses. The accident - which released 100 times more waste than the Exxon Valdez disaster - has polluted the waterways...
...subjects are beneath the notice of a Congressional resolution. Soil, for instance, might be celebrated, as it was in 2008. Or watermelon. Athletes are popular, too. Nothing pleases constituents quite like Congressmen and Senators giving agreeable shout-outs to local sports heroes. Last year, the 110th Congress praised superstar Olympian Michael Phelps; it also celebrated Wichita State University's championship women's bowling team. Legislators, it seems, aren't very picky. Unless of course they are passing actual laws...
...spots were chosen for a very good reason. Despite the caps of ice in Mars' polar regions and the deposits of ice thought to lie beneath the soil, the planet is a desiccated place. But that doesn't mean Mars wasn't once wet, and its topography - scarred with what appear to be ancient river channels and dry seabed - suggests that the planet once fairly sloshed with water. If you want to find signs of ancient life, the key is to follow that water - or at least the places it used...
...live along Montana's Yellowstone River are downstream from a simmering caldera, a geologic hot spot that has become especially active recently. Indeed, Yellowstone National Park contains the floor of a gigantic volcanic cauldron, one that rises and sinks with the forces that lie beneath - hence the picturesque geysers and steam holes. But a wave of recent earthquake activity is raising fears that have their origins 642,000 years ago, when a Yellowstone "supervolcano" exploded so violently that it created the caldera itself. Today, such an explosion - 1,000 times more powerful than the explosion of Mount St. Helens...
Last week, geologists at the Yellowstone Volcano Observatory (YVO) announced they had recorded a "notable swarm of earthquakes under way since Dec. 26 beneath Yellowstone Lake." The strongest tremor among the hundreds in the past week measured 3.9 on Dec. 27; most of the readings above 2.8 were felt by park employees and visitors around the lake area. The activity relaxed in magnitude early this week but then flexed upward again to top 3.0 by early New Year's Eve. "This December 2008 earthquake sequence is the most intense in this area for some years," YVO reported, "and is centered...