References
- Environmental Impacts of Hydraulic Fracturing by: Frank R. Spellman
-Â https://www.earthworksaction.org/issues/detail/hydraulic_fracturing_101#.WRSB_1PyvVo
-Â https://www.epa.gov/hydraulicfracturing/process-hydraulic-fracturing
-Â https://www.propublica.org/special/hydraulic-fracturing-national











