Fracking is a method for obtaining natural gas and oil by drilling through our water table into shale layers far below the surface. It involves numerous toxic chemicals pumped down under pressure, as well as heavy metals and radioactive materials that are brought back up from below. Studies show around 6% of the drill casings leak from the start, and up to 50% of them leak by 15 years. Contamination has been demonstrated repeatedly. There is a large and growing medical literature on the dangers of fracking. Most fracked material is transported by pipeline. There have been thousands of pipeline leaks in the US in the past several years. People working to stop pipelines deserve our support. Physicians reject natural gas, considering it “too dirty and too dangerous”.