Efforts to fill caves may have increased danger.(NEWS)

From: Star Tribune (Minneapolis, MN) | Date: April 28, 2004| Author: | Copyright information

Byline: Matt McKinney; Staff Writer

An expert on the St. Paul caves where at least three teenagers died Tuesday of carbon monoxide poisoning said he believes earlier efforts to seal off the manmade caverns may have contributed to the tragedy.

"We as a society have created a deathtrap," said E. Calvin Alexander, a professor of geology and geophysics at the University of Minnesota. Alexander, who has mapped some of the St. Paul caves, said the only way to prevent more deaths is to empty the caves - some of them filled with construction debris from attempts to make them ...

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