NEW YORK, NY - NOVEMBER 30: Actor and activist Mark Ruffalo and documentary filmmaker Josh Fox attend a panel on Hydraulic Fracturing at the Tribeca Performing Arts Center on November 30, 2011 in New... more 
NEW YORK, NY - NOVEMBER 30: Actor and activist Mark Ruffalo and documentary filmmaker Josh Fox attend a panel on Hydraulic Fracturing at the Tribeca Performing Arts Center on November 30, 2011 in New York City. (Photo by Slaven Vlasic/Getty Images) less 
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Getty Images | Photo By Slaven Vlasic / Getty Images
Wed, Nov 30, 2011 3:24 PM EST