September 22, 2012
John Heller photo

A man signs a petition during a global Frackdown Day calling for a moratorium on Shale Gas Drilling at Schenley Park in Pittsburgh, Saturday, Sept. 22, 2012.

John Heller photo

Local groups from Pittsburgh take part in a Frackdown Smackdown tug-of-war between college students representing the “gas industry” and Pennsylvania citizens during a global Frackdown Day Schenley Park in Pittsburgh, Saturday, Sept. 22, 2012.

John Heller photo

Cynthia Walter, from the Sierra Club, and other participants rallied and signed petitions in Schenley Park during a rally against Shale gas drilling in Pittsburgh, Saturday, Sept. 22, 2012.