Abstract - The drive to implement unconventional gas drilling by means of hydraulic fracturing in United Kingdom (UK) has been a major issue of concern due to the potential environmental and health impacts. This paper is aimed at examining the following: what triggers the need for the unconventional gas; the process of unconventional gas through hydraulic fracturing method; the potential risks of hydraulic fracturing to the environment and to human health; key success factors for implementing hydraulic fracturing; possible options in fluids to go greener from the traditional approach; pros and cons of the various fluid options to ascertain their sustainability. It also presents a project methodology for hydraulic fracturing and discusses what needs to be determined before it is implemented in the UK.