As different from the earlier environmentally damaging horizontal drilling and hydraulic fracturing (fracking) process, the new process cooks the shale rocks in oxygen-free retorts (above ground) to separate the oil and gas (energy intensive) while Shell in a new method is experimenting with a less environmentally damaging method of electrical heating of the shale rocks underground to extract the oil. This is not only more economical, it is more environmentally friendly too. They have met with some degree of success.
Will these new technologies of extracting fossil fuels from wells and rocks stunt the development of alternate sources of energy in an energy-starved world ??