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Politics : Sioux Nation -- Ignore unavailable to you. Want to Upgrade?

To: Wharf Rat who wrote (71496)	6/26/2006 4:16:17 PM
From: T L Comiskey	Read Replies (1) \| Respond to of 360967

Lake Nyos... Africa.. CO2..killed 1700 people in a blink.. geology.sdsu.edu THE AUGUST 12 EXPULSION OF DEADLY CO2 The CO2-rich cloud was expelled rapidly from the southern floor of Lake Nyos. It rose as a jet with a speed of about 100 km per hour. The cloud quickly enveloped houses within the crater that were 120 meters above the shoreline of the lake. Because CO2 is about 1.5 times the density of air, the gaseous mass hugged the ground surface and descended down valleys along the north side of the crater. The deadly cloud was about 50 meters thick and it advanced downslope at a rate of 20 to 50 km per hour. This deadly mist persisted in a concentrated form over a distance of 23 km, bringing sudden death to the villages of Nyos, Kam, Cha, and Subum.