Report: Secrecy over fracking chemicals clouds environmental risks, advocates say

Despite a report that links practice to contaminated drinking water, list of more than 1,076 chemicals used during fracking process remains unknown to public.

The Guardian,  5 July 2015

http://www.theguardian.com/environment/2015/jul/05/fracking-injection-chemicals-drinking-water-transparency?CMP=ema_565