Hydraulic fracturing, or fracking, is an industrial process undertaken to access pockets of gas locked inside rock formations underground. It's seen by its proponents as a vital part of the solution to the current energy crisis, particularly as on-going tensions with Russia mean gas supply security looks very uncertain and remains very expensive. Critics, however, have pointed to environmental concerns and contest how much it could actually reduce energy prices. So, we're going to remove party politics from this contentious topic and see what the science has to say. We're sorting fract, from... Like this podcast? Please help us by supporting the Naked Scientists