Back to the resource library Green Group letter to President Obama urging strong oversight of natural gas extraction January 21, 2011 | Share: Download See All Related Resources Comments on Allegheny County Board of Health EQT Leto Dehydrator Air Quality Permit Comments on Colorado’s Air Toxics Rules Filtered Tailings in Indonesia: The Catastrophic Failure of a Disruptive Technology Tailing yang Difilter di Indonesia: Kegagalan Katastropik dari Sebuah Teknologi Disruptif