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Related: Editorials & Other Articles, Issue Forums, Alliance Forums, Region ForumsTar Sands Mining Produces Pollution 2 To 3 Orders of Magnitude Higher Than Previously Calculated
Smithsonian.com
Mining Tar Sands Produces Much More Air Pollution Than We Thought
Research shows that emissions of a class of air pollutants are two to three orders of magnitude higher than previously calculated
By Joseph Stromberg
February 3, 2014 8:02PM
Last week, the U.S. State Department released a report indicating that the proposed Keystone XL pipeline, which would carry oil from Western Canada's Athabasca oil sands to the U.S., wouldn't have significant environmental impacts. It's worth noting, though, that the report didn't say that extraction from the oil sands itself won't have environmental impactsjust that this mining will proceed with or without the pipeline being built.
Your feelings on the pipeline aside, it's well-established among scientists that extraction of oil from these oil sands (also known as tar sands) is environmentally dicey. The petroleum found in them doesn't flow easily like conventional crudeit's a sticky, viscous type formally known as bitumen but more commonly known as tarso companies have to resort to alternate measures, either surface mining (digging up the rock or sand covering the oil-laden sediment) or injecting steam to get it out of the Earth.
This uses up an enormous amount of water, distributes toxic metals into the surrounding watershed and perhaps most important leads to an estimated 14 percent higher level of greenhouse gas emissions than conventional oil, because some natural gas must be burned simply to convert the bitumen into a usable form.
To this list of concerns, we can now add another. A new study, published today in Proceedings of the National Academy of Sciences, shows that production in the Athabasca oil sands region is leading to the emission of levels of polycyclic aromatic hydrocarbons (PAHs) two to three orders of magnitude higherthat's one hundred to one thousand times greaterthan previously thought. These higher levels of PAHs in the area aren't imminently dangerous (they're comparable to levels found in urban areas, which result from burning gasoline in cars and trucks), but they're significantly higher than reported in mining companies' environmental impact assessments and Canada's official National Pollutant Release Inventory.
Frank Wania and Abha Parajulee, environmental scientists at the University of Toronto, came to the finding by looking at previous estimates for the PAH emissions that result from mining (gleaned from the pollutant release inventory and the mining companies' environmental impact assessments) and comparing them to levels of PAHs that they measured in the air in the Athabasca region.
Read more: http://www.smithsonianmag.com/science-nature/mining-tar-sands-produces-much-more-air-pollution-we-thought-180949565/#ixzz2sMh46qDA
Mining Tar Sands Produces Much More Air Pollution Than We Thought
Research shows that emissions of a class of air pollutants are two to three orders of magnitude higher than previously calculated
By Joseph Stromberg
February 3, 2014 8:02PM
Last week, the U.S. State Department released a report indicating that the proposed Keystone XL pipeline, which would carry oil from Western Canada's Athabasca oil sands to the U.S., wouldn't have significant environmental impacts. It's worth noting, though, that the report didn't say that extraction from the oil sands itself won't have environmental impactsjust that this mining will proceed with or without the pipeline being built.
Your feelings on the pipeline aside, it's well-established among scientists that extraction of oil from these oil sands (also known as tar sands) is environmentally dicey. The petroleum found in them doesn't flow easily like conventional crudeit's a sticky, viscous type formally known as bitumen but more commonly known as tarso companies have to resort to alternate measures, either surface mining (digging up the rock or sand covering the oil-laden sediment) or injecting steam to get it out of the Earth.
This uses up an enormous amount of water, distributes toxic metals into the surrounding watershed and perhaps most important leads to an estimated 14 percent higher level of greenhouse gas emissions than conventional oil, because some natural gas must be burned simply to convert the bitumen into a usable form.
To this list of concerns, we can now add another. A new study, published today in Proceedings of the National Academy of Sciences, shows that production in the Athabasca oil sands region is leading to the emission of levels of polycyclic aromatic hydrocarbons (PAHs) two to three orders of magnitude higherthat's one hundred to one thousand times greaterthan previously thought. These higher levels of PAHs in the area aren't imminently dangerous (they're comparable to levels found in urban areas, which result from burning gasoline in cars and trucks), but they're significantly higher than reported in mining companies' environmental impact assessments and Canada's official National Pollutant Release Inventory.
Frank Wania and Abha Parajulee, environmental scientists at the University of Toronto, came to the finding by looking at previous estimates for the PAH emissions that result from mining (gleaned from the pollutant release inventory and the mining companies' environmental impact assessments) and comparing them to levels of PAHs that they measured in the air in the Athabasca region.
Read more: http://www.smithsonianmag.com/science-nature/mining-tar-sands-produces-much-more-air-pollution-we-thought-180949565/#ixzz2sMh46qDA
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Tar Sands Mining Produces Pollution 2 To 3 Orders of Magnitude Higher Than Previously Calculated (Original Post)
G_j
Feb 2014
OP
hunter
(38,349 posts)1. The environmental impacts of fossil fuels will just get worse...
... as we become desperate.
G_j
(40,372 posts)2. Especially with this type of oil
toxic all around..
2naSalit
(86,915 posts)3. By the way...
inhibiting transport of this stuff is one way to help shut it down. And our role is to NOT allow the KXL to be finished just to send that crap to China. SO....
There is a public comment period that lasts only 30 DAYS
http://www.keystonepipeline-xl.state.gov/
A 30-day public comment period begins on February 5, 2014 and will close on March 7, 2014. During this period, members of the public and other interested parties are encouraged to submit comments on the national interest determination to http://www.regulations.gov Comments are not private and will be made public. Comments may also be mailed directly to:
U.S. Department of State
Bureau of Energy Resources, Room 4843
Attn: Keystone XL Public Comments
2201 C Street, NW
Washington, DC 20520
http://www.keystonepipeline-xl.state.gov/
A 30-day public comment period begins on February 5, 2014 and will close on March 7, 2014. During this period, members of the public and other interested parties are encouraged to submit comments on the national interest determination to http://www.regulations.gov Comments are not private and will be made public. Comments may also be mailed directly to:
U.S. Department of State
Bureau of Energy Resources, Room 4843
Attn: Keystone XL Public Comments
2201 C Street, NW
Washington, DC 20520
Please share this public comment info, we only have 30 days. Informed decisions have to be made, no excuses for not acting cuz if we don't now, forget about it later, there won't be another opportunity.
thank you!
Octafish
(55,745 posts)6. So...Tar Sands mining causes 100 to 1,000 times more pollution than estimated.
Gee. If only there were a better way to get energy. Hmm.
2naSalit
(86,915 posts)7. Really...
If only...