This showed up on the E-magazines latest email issue.  http://www.emagazine.com/earth-talk/greener-ways-to-frack-for-natural-gas/
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Paul Wilson
Sierra Club
504 Jefferson Ave
Charles Town, WV  25414-1130
Phone: 304-725-4360
Cell: 304-279-1361

"There is no forward until you have gone back" ~Buddha

"In all things of nature there is something of the marvelous" ~ Aristotle