Tar Sands Oil Pipeline Has Hidden Pollution Danger

Tar Sands Oil Pipeline Has Hidden Pollution DangerEuropean researchers say a 2,000-mile pipeline designed to carry controversial tar sands oil from Canada to the southern US may lead to much more pollution than previously calculated.

The oil industry has high hopes of the US$5.4 billion Keystone XL pipeline, which on completion is planned to carry crude oil from Canada’s tar sands in Alberta to refineries more than 2,000 miles away in Texas.

With President Barack Obama saying he will approve Keystone only if it “does not significantly exacerbate the problem of carbon pollution”, the pipeline’s future is seen by many inside and outside the US as an acid test of his resolve to tackle climate change.

But in a report that questions US State Department calculations of Keystone’s impact, researchers in Europe say it could increase carbon emissions by much more than anyone has so far calculated.

Emissions Increase More Than Calculated

The research team, from the Stockholm Environment Institute (SEI), says the pipeline could increase world greenhouse gas emissions by as much as 121 million tons of carbon dioxide a year − more than four times higher than the " href="http://www.rtcc.org/2014/02/03/keystone-foes-to-fight-on-after-government-downplays-climate-risk/" target="_blank">State Department’s estimated total of 30 million tons at most.

The official figure, the SEI says, ignores the fact that the extra oil refined once the pipeline is working will cause prices to fall by about $3 a barrel, increasing consumption and, with it, carbon emissions. The SEI report is published by the journal Nature Climate Change.

To put the possible 121 million ton figure in perspective, the total amount of CO2 emitted globally in 2013 was 36 billion tons.

The American Petroleum Institute said the study was irrelevant because the tar sands would be developed anyway and oil would be transported to the southern refineries by rail if not by pipeline.

But Ken Caldeira, an atmospheric scientist at the Carnegie Institution for Science’s Department of Global Ecology in Washington, while agreeing that the total emissions increase is small, said the concern was more about the idea of boosting emissions than the degree of change.

Tar sands arouse vehement opposition from environment groups and from many communities in Alberta.

Concerns about exploiting the sands include the impact on health and safety, water resources, air pollution and soil damage. Beyond that, some analysts are increasingly arguing that the world cannot afford to burn most of its fossil fuel reserves (including unconventional oil, such as that from tar sands) if it is to avoid catastrophic climate change.

Lower Oil Prices Equal Greater Consumption

The authors of the SEI study, Peter Erickson and Michael Lazarus, found that, for every barrel of increased production, global oil consumption would increase by 0.6 barrels because of the resulting fall in world oil prices.

Taking other variables into account, they calculated that the net annual impact of Keystone XL could range from virtually nothing to 121 million tons of CO2 equivalent − a spread much wider than that found by the State Department, which did not account for global oil market effects.

“The key message is that the oil market impacts of Keystone XL could be significant – and have an emissions impact four times greater than the US State Department found,” Erickson told Responding to Climate Change, a London-based news and analysis website.

“That also suggests that more of this type of analysis − analysing the possible market effects of other fossil fuel infrastructure projects − could be warranted, as they could have similar effects”. − Climate News Network

About the Author

Alex Kirby is a British journalistAlex Kirby is a British journalist specializing in environmental issues. He worked in various capacities at the British Broadcasting Corporation (BBC) for nearly 20 years and left the BBC in 1998 to work as a freelance journalist. He also provides media skills training to companies, universities and NGOs. He is also currently the environmental correspondent for BBC News Online, and hosted BBC Radio 4's environment series, Costing the Earth. He also writes for The Guardian and Climate News Network. He also writes a regular column for BBC Wildlife magazine.

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