in case anybody is interested in such things:
recently i saw some report about hydraulic fracturing (or fracking, whatever it goes by) which is used to increase the amount of natural gas won out of gas wells.
for this they need 'fracking fluid' which is mostly tons of water and sand and 'only'* contains ~1% of chemicals which are- as practically all the involved companies say- not harmful in any way.
as someone working in a lab, let me tell you that it's not true..i saw the list of chemicals used for it, you don't want to have most of those in your groundwater or anywhere near you(also not the heavy metals washed out during the process).
i mean, do they really think when they tell us the sky is yellow with black dots everybody will believe it?
i just needed to say that
*the 'only' is only in the opinion of the companies