- Systematic Review #1
- Systematic Review #2
- Fracking and Contamination of Groundwater due to imperfect drilling
- Halliburton Loophope
- Fracking and Contamination of Groundwater
- Greenhouse gas emissions
- [US Geological Survey research connects fracking to earthquakes](http://www2.seismosoc.org/FMPro?-db=Abstract_Submission_12&-sortfield=PresDay&-sortorder=ascending&-sortfield=Special+Session+Name+Calc&-sortorder=ascending&-sortfield=PresTimeSort&-sort