durhamjen. There was an article in the Independent some months ago about fracking that talked about the chemicals used. Fracking water contained only 0.17% chemicals and 5% sand, nothing else. All the chemicals permitted for use in fracking in the UK are chemicals currently acceptable for human use or contact. To be precise: sodium chloride (table salt), poly acrylamide (used in cosmetics) and hydrochloric acid (used in swimming pools). There are other chemicals, some of them harmful that have been used, but not onshore UK, and probably not offshore UK either.
Galen I am absolutely with you on the use of water power. I am sometimes driven to despair by the cavalier way inefficient wind farms and photovoltaic farms, encouraged by huge subsidies, are forced on an unwilling public and degrade our landscape, while major water power schemes like the Severn barrage and a recently announced scheme for Cardiff Bay and other areas are stamped on and stopped because a few birds or a great crested newt would be inconvenienced. Together the Severn barrage and the new scheme at Cardiff could together supply up to 20% our power demand on a 24/7 basis.
We would then not to have to pay to keep gas-fired turbines fired up, consuming fuel and producing emissions but not producing power so that they can be instantly turned on when wind-power suddenly drops off.