Fracking, also known as hydraulic fracturing, is a process of drilling down into the earth and pumping an enormous amount of a chemically treated water and sand mixture into shale formations until the rock is fractured apart by the high pressure mixture and oil and natural gas is then extracted.
Not only does fracking use 7.6 to 30 million liters of water to frack a well but it also runs the risk of contaminating our ground water.
In order to have a clearer understanding of the process and the controversy surrounding it, please watch the video
How does fracking work? by Mia Nacamulli.