Pros and cons from heartland university: https://www.heartland.org/publications-resources/publications/research--commentary-study-south-texas-fracking-not-a-risk-to-air-quality
https://www.eia.gov/tools/faqs/faq.cfm?id=33&t=6
globalenergyinitiative.org/insights/58-fracking-has-been-around-since-1949-why-the-recent-controversy.html
https://www.eia.gov/tools/faqs/faq.cfm?id=33&t=6
globalenergyinitiative.org/insights/58-fracking-has-been-around-since-1949-why-the-recent-controversy.html