We’ve been watching Josh Fox’s documentary Gasland about hydraulic fracturing (or ‘fracking’) , the method used to release natural gas from shale deposits. Millions of gallons of water, sand and proprietary chemicals are pumped under high pressure into a drilled well to release the gas. Many of the 80-300 tons of chemicals per frack are highly toxic and carcinogenic volatile organic compounds (VOCs) such as benzene, toluene, ethylbenzene and xylene, and a veritable host of others. A well can be fracked up to 18 times.
We’re bombarded lately with television ads claiming that natural gas is the clean and safe alternative to coal, and known deposits could provide us with safe energy for the next fifty years, la la la… It seems that the industry is pushing back hard against the public awareness that Fox’s film has generated over the dangers involved with fracking methods.
Now there appear to be some pretty major problems with fracking, including the potential to poison water wells when the well casings crack, and it appears that has happened plenty. The toxic water used has to be disposed of; estimates are that only half the water is recovered. Typically the VOCs are evaporated off, then the water is trucked to wastewater treatment facilities, none of which is supervised or regulated either.