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  • Dr. Anthony Ingraffea speaking about Hydrofracking / Marcellus Shale Part 1

    Dr. ingraffea from Cornell University speaking about Hydrofracking part 3 - Duration: 9 minutes, 47 seconds.

    • 5 years ago
    • 1,909 views
    Dr. Ingraffea in part three of the videos of the talk on March2,2010 in Penn Yan concerning hydrofracking.
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