| http://www.w3.org/ns/prov#value | - Hydraulic fracturing, or fracking, involves injecting huge amounts of water, mixed with sand and chemicals, at high pressure to break up rock formations and release natural gas.A fracking well can produce millions of litres of waste water, which is often laced with highly corrosive salts, carcinogens such as benzene and radioactive elements including radium, all of which can occur naturally underg
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