[No abstract submitted] / Science, Faculty of / Chemistry, Department of / Graduate

[No abstract submitted] / Science, Faculty of / Chemistry, Department of / Graduate

The velocity of diffusion of the bitumin from sections of 'Tar Sands' has been measured in a specially designed diffusion cell. The solvent used in this case was benzene. The diffusion constant was found to be D = 2.39 x 10⁻⁵/ ft²/hr. / Applied Science, Faculty of / Chemical and Biological Engineering, Department of / Graduate

Thesis (Ph.D.)--University of Alberta, 2009. / Title from PDF file main screen (viewed on Feb. 19, 2010). A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Geotechnical Engineering, [Department of] Civil and Environmental Engineering, University of Alberta. Includes bibliographical references.

No description available.

Thesis (M. Sc.)--University of Alberta, 2009. / Title from pdf file main screen (viewed on Sept. 1, 2009). "A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Master of Science in Chemical Engineering, Department of Chemical and Materials Engineering, University of Alberta." Includes bibliographical references.

This study explores how the Canadian and Alberta governments downplay environmental harm in the Alberta Tar Sands, therein justifying its ongoing expansion and defining it as unnecessary to intervene through the law. In particular, this study draws on the concepts of hegemony, social harm and deep ecology to problematize how climate change has become the governments’ main environmental concern in the tar sands, despite the existence of other, equally troubling issues, and how carbon capture and storage (CCS) has become the states’ main climate change strategy, despite the largely untested nature of this technique. A critical discourse analysis of two government taskforce documents concerning CCS technology revealed that neoliberal and globalization discourses were used to narrowly conceptualize environmental harm, thereby privileging Canada’s trade relations and economic strength over the environment’s health. Relatedly, discourses of scientism were used to conceptualize climate change as a technical problem and CCS as the “preferred” solution.

This thesis has two central objectives. First, drawing on both the insights contained in the staples approach and the frames and narratives mobilized by contemporary political actors, it attempts to provide insight into the political-economic drivers underpinning the large and growing political influence of the Canadian oil sands. Second, it assesses the effects of this influence on Canadian society and the Canadian state. This influence is observable materially, as with the federal government’s oil sands-oriented policy changes and mobilization of the state security apparatus in its defense, and in less concrete ways, as with the rise of discourses conflating national interest with continued oil sands expansion. This thesis concludes that the effects of this influence have been negative and profound, and in an era of climate crisis, alternatives to Canada’s dominant political economic trends must be urgently sought. / Graduate / paulnoblegreen@gmail.com

In the spring of 2016, a wildfire consumed the boreal forest that encircles the municipality of Fort McMurray, Alberta. Notwithstanding the severity of the blaze, known as “The Beast,” attention turned to the community because of its link to Canada’s largest industrial project – the Athabasca tar/oil sands in northern Alberta. A moment of controversy erupted in May 2016 when commentary pinned the cause of the wildfire on climate change, a charge that was quickly judged insensitive. With this context in mind, Fort McMurray holds scholarly value in the investigation of discourse related to today’s dominant form of energy – fossil fuels. Using a dataset of opinion discourse (N=40) sourced from four Canadian newspapers (The Globe and Mail, the National Post, the Calgary Herald, and the Edmonton Journal), this thesis presents a critical discourse analysis of how commentators and editorial boards articulated the relationship between the 2016 Fort McMurray wildfire and concerns about the tar/oil sands contribution to climate change. The opinion pages are free from the journalistic pressure of objectivity and thus offer a place for argumentative narratives to reside. As such, my analysis focuses on the use of storylines in the dataset to give meaning to the wildfire and the tar/oil sands industry. The analysis reveals that the storylines cast environmentalist groups as ideologically motivated radicals while the oil industry was positioned as Alberta’s economic champion, thereby fusing the petro-state with the common good.

In Alberta, Canada, amongst its mixture of sand, clay, water and other minerals, the tar sand’s heavy and viscous component bitumen, a thick, sticky form of crude oil is extracted through two methods; open-pit mining for shallower deposits (<75 m), and in situ for deeper deposits (>75 m). This degree project consists of a comparison between these two extraction methods impact on air, nature and water, which all have been evaluated by reviewing and analyzing literature. Studies showed that in situ methods cause a higher impact on air than open-pit mining, through higher emissions of greenhouse gases and sulfur dioxide (SO2), and will surpass the carbon dioxide (CO2) emissions caused by the open-pit mines when the shallower, more accessible tar sands dwindle. Open-pit mining causes a higher impact on water due to its large tailing ponds that causes leakage of processing water and fine tailings, polyaromatic hydrocarbons (PAH: s) and these 13 following elements considered priority pollutants (PPE) by the US Environmental Protection Agency (EPA); antimony (Sb), arsenic (As), beryllium (Be), lead (Pb), cadmium (Cd), copper (Cu), chromium (Cr), mercury (Hg), nickel (Ni), selenium (Se), silver (Ag), thallium (Tl) and zinc (Zn). However studies remain unclear whether or not in situ methods are worse due to underground tailing ponds. Finally, when it comes to nature, open-pit mining causes a more direct environmental impact through deforestation, drainage of peat and wetland, and blasting of rock. In situ methods however, seem to cause more of a long term environmental impact through fragmentation. Dividing the landscape into smaller units through roads, wells, pipelines and seismic lines, leads to domestic biodiversity and homogenization of flora and fauna as unfavorable conditions is created for the nature’s wildlife. In conclusion, in situ methods causes a bigger impact on air than open-pit mining, while open-pit mining causes a bigger impact on water. Due to lack of time and resources, more research about the direct impact on nature is needed to fully evaluate which of the two extraction methods causes the least environmental impact.