MICHAEL SZOENYI / SCIENCE PHOTO LIBRARY MICHAEL SZOENYI / SCIENCE PHOTO LIBRARY
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Wallender Born cold water geyser. This geyser, popularly known as the Brubbel, is located in the village of Wallenborn, Rhineland-Palatinate, Germany. Unlike the more familiar geothermal geysers, cold water geysers are driven by a high volume of dissolved carbon dioxide. Below ground, the pressure keeps the carbon dioxide in solution, but where it reaches the surface it can escape. The pressure of the water column keeps it in solution for a short period of time, but periodically the internal pressure exceeds the water pressure, and it erupts, much like a fizzy drink bottle being opened.
Model release not available. Property release not required.