Someday in the not to distant future the micronized fracking nano pearls will release anaerobic shale eating bacteria liquifying the shale releasing five times the amount of gas, liquids, and shale to build roads and cities and power them.  Garbage after extracting methane and all other useable s, will be liquified and injected back to fill the voids.  For now super fracking is looking good.

http://business.financialpost.com/2012/01/11/super-fracking-goes-de...