How do the processes that will be used for Earth Source Heat (ESH) and the Cornell University Borehole Observatory (CUBO) differ from what is called unconventional shale gas development (a.k.a. horizontal fracture drilling, hydrofracking or "fracking"), and what similarities are there?

A. R. Ingraffea, Ph.D., P.E., Dist. Member ASCE

Dwight C. Baum Professor of Engineering Emeritus and Weiss Presidential Teaching Fellow at Cornell University

Subject Editor for Geomaterials for ENGINEERING FRACTURE MECHANICS
https://www.journals.elsevier.com/engineering-fracture-mechanics/

As a concerned scientist/engineer, he engages beyond the academy to further inform and educate the public on critical scientific issues that involve public health and safety, and is also Founding and Past President and now Senior Fellow: PSE Healthy Energy, Inc. www.psehealthyenergy.org