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Date:12/28/2009

wolves travel all the way to the North Pole? What will they eat? How far will they have to travel to find food? To hear more about Brutus, check out USGS CoreCast Episode 111 at http://www.usgs.gov/corecast/details.asp?ep=111. For more information visit the USGS Newsroom at http://www.usgs.gov/newsroom/article.asp?ID=2351, or contact David Mech at david_mech@usgs.gov or (651) 649-5231.

Landslide in Colorado Feeling Pressure

When the pressure above you changes, you may notice that your ears pop. Mountains notice changes in pressure too. Recently, USGS scientists working on the Slumgullion Landslide in Colorado have found that periods of low atmospheric pressure can trigger landslides. Landslides happen when there isn't much friction on a mountainside. This condition is usually caused by rain or snow, which can make the mountain slippery. Scientists found that when there is low pressure, there is also less friction holding the rocks and sediment in place. This research suggests that rapid pressure variations associated with some fast-moving storm systems could trigger landslides. Landslides cause thousands of casualties and billions of dollars of damage annually, and this new research will help managers and scientists better plan for landslides. For details visit the USGS landslides Web site at http://landslides.usgs.gov/ or view the full report at http://www.nature.com/ngeo/journal/v2/n12/abs/ngeo659.html. For more information contact Bill Schulz at wschulz@usgs.gov or (303) 273-8404.


FEEDS: (science updates and happenings)

The Oldest Business in North America:

The Miwok Tribe conducted perhaps the oldest business in North America. Long befor
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Contact: Kara Capelli
kcapelli@usgs.gov
703-648-5086
United States Geological Survey
Source:Eurekalert

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