Having a noxious gas sensor in a coal mine is not at all the same as tracking methane emissions from a fracking operation, which can occur over many square miles of the surrounding countryside (the whole point is to fracture underground rocks containing hydrocarbons, which then seep to the surface).
Trump administration is currently getting rid of all rules about methane emissions, so producers will have zero legal requirement in the USA to track, identify, report on, or prevent any methane leaks.
Trump administration is currently getting rid of all rules about methane emissions, so producers will have zero legal requirement in the USA to track, identify, report on, or prevent any methane leaks.