Thursday, May 30, 2013

Shattered Ground...What the Frack Are We Doing?

              



 




Shale gas deposits and fracking areas in the US
 
At least 38 earthquakes in Northeastern B.C. over the past few years were caused by hydraulic fracturing, commonly called fracking, according to a report by the B.C. Oil and Gas Commission. Studies have found quakes are common in many places where that natural gas extraction process is employed.

It’s not unexpected that shooting massive amounts of water, sand and chemicals at high pressure into the earth to shatter shale and release natural gas might shake things up. But earthquakes aren’t the worst problem with fracking.

“Fracking”, or Hydraulic Fracturing, is a new technology that has opened up immense resources of natural gas buried in deep shale beds. The process involves injection of highly-pressurized water, sand and chemicals to shatter underground layers of shale and extract previously inaccessible natural gas.  But the process and its sudden spread across the North American landscape, has become an incredibly divisive issue, ripping apart communities. The backlash to the gas industry is unprecedented, with some countries, Canadian provinces and American states adopting fracking bans and moratoriums.

 Some see fracking as a great opportunity for money and jobs, and one that provides cheap, clean fuel. But, for others, the possible human health costs of this new drilling technology have motivated a large and vociferous anti-fracking movement. Fracking’s critics consider the industry a potential environmental disaster, citing chemical contamination of air and water. With pipelines proposed, terminals for liquefied natural gas (LNG) requiring billions of dollars of investment, and huge shale beds lying underneath highly-populated areas of the Canada and the US (including southern Ontario), fracking is an issue that could affect every one of us.
 
Must there be a choice between health and wealth, or is it possible to find a balance? The gulf between proponents and opponents appears so wide, it’s difficult to find common ground. 

Hydraulic fracturing requires massive amounts of water. Disposing of the toxic wastewater, as well as accidental spills, can contaminate drinking water and harm human health. And pumping wastewater into the ground can further increase earthquake risk. Gas leakage also leads to problems, even causing tap water to become flammable! In some cases, flaming tap water is the result of methane leaks from fracking. And methane is a far more potent greenhouse gas than carbon dioxide!

Those are all serious cause for concern—but even they don’t pose the greatest threat from fracking. The biggest issue is that it’s just one more way to continue our destructive addiction to fossil fuels. As easily accessible oil, gas and coal reserves become depleted, corporations have increasingly looked to “unconventional” sources, such as those in the tar sands or under deep water, or embedded in underground shale deposits.

And so we end up with catastrophes such as the spill—and deaths of 11 workers—from the Deepwater Horizon blowout in the Gulf of Mexico in 2010. We turn a blind eye to the massive environmental devastation of the tar sands, including contamination of water, land, and air; destruction of the boreal forest; endangerment of animals such as caribou; and impacts on human health. We blast the tops off of mountains to get coal.

With fracking’s gigantic appetite for water – water permanently removed from the eco-system – what’s at stake may not just be about our supply of natural gas but the one resource none of us can live without: fresh water.  We figure depleted water supplies, a few earthquakes, and poisoned water are the price we have to pay to maintain our fossil-fuelled way of life.

We should, as a civilization, have taken that dwindling supply and rising price as a signal to convert to sun, wind, and other noncarbon forms of energy. It would have made eminent sense, most of all because it would have aided in the fight against global warming, the most difficult challenge the planet faces. If we want to address global warming, along with the other environmental problems associated with our continued rush to burn our precious fossil fuels as quickly as possible, we must learn to use our resources more wisely, kick our addiction, and quickly start turning to sources of energy that have fewer negative impacts.

 

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