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shared by Katie S on 12 Nov 12 - Cached

shared by Katie S on 12 Nov 12 - Cached

shared by Raya H on 09 Jan 13 - No Cached

Or should we fear it as a potentially lethal eco-nightmare?
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The process is called hydraulic fracturing, or ‘fracking’, and involves pumping a mixture of pressurised water and chemicals into the well, creating tiny fissures in the shale that allow the gas within it to percolate out
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After a few months, the fracking is complete and the gas starts flowing up the well. The engineers can then move on, leaving a small collection site behind
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 40,000 new wells are drilled each year, around 8 to 10 go wrong
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Climate change experts warn that shale gas is still just a fossil fuel, and thus a source of carbon dioxide – the prime driver of global warming. Environmentalists have also raised concerns about the impact of extracting the gas. They point to incidents of drinking water allegedly becoming contaminated with the chemicals used to extract the gas, and even shale gas itself, leading to tap water becoming flammable. Such fears have already prompted the French government to impose a temporary ban on shale gas extraction.
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Shale gas could solve the fuel crisis.
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blamed in 2011 for a couple minor earthquakes in the UK
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