82 research outputs found
Mining projects in transition : intensifying extractivism under the guise of fighting climate change
No full textAbstract : ""As Quebecers, we could make an important contribution to the fight against climate change by
allowing these projects to emerge," says the CEO [of a Quebec mining company]. “What other options
are there if we want to one day replace gasoline in our vehicles, boats, and planes? You have a choice
between lithium from Australia that was processed in China, or lithium salts from South America, which
are very difficult for groundwater, and with working conditions that are perhaps less attractive than
in Abitibi.” [Translation] (Léouzon, 2021). This excerpt from a press article is about new projects that aim to contribute to the fight against climate change. More specifically, it is about an open-pit lithium mining
project in Abitibi-Témiscamingue that is being challenged for its environmental impact. The line
of reasoning expressed above is found in many mining projects involving critical and strategic minerals. How can a natural resource extraction project be legitimized with the argument of fighting climate change? Isn’t there an inherent contradiction in legitimizing projects that have undeniable environmental impacts under the guise of green rhetoric? This article takes a critical look at these forms of justification, focusing on the concept of nature and the relationship between humans and nature. [...]"
Les projets miniers de la transition : intensifier l’extractivisme sous couvert de la lutte aux changements climatiques
No full text« Dans cet extrait d’article de presse, il est question de nouveaux projets qui visent à contribuer à la lutte aux changements climatiques. Il est en réalité question d’un projet de mine de lithium à ciel ouvert contesté pour ses conséquences environnementales, en Abitibi-Témiscamingue. Cette ligne argumentaire se rencontre dans de nombreux projets extractifs de minéraux critiques et stratégiques. Comment en arrivet-on à légitimer un projet d’extraction de ressources naturelles en recourant à un argument de lutte contre les changements climatiques ? N’y a-t-il pas une tension fondamentale à légitimer des projets qui ont des conséquences environnementales indéniables sous couvert d’un discours vert ? Le présent article propose un regard critique sur ces modes de justification en centrant la réflexion autour de la conception de la nature et de la relation entre l’humain et la nature. [...]
Vivre en castor : histoires de cohabitations et de réconciliation
No full textNous vivons au sein d’anthroposystèmes dévastés dans lesquels l’humain est perçu comme un être supérieur aux autres vivants. Cette vision anthropocentrée du monde héritée des Lumières persiste encore largement aujourd’hui. Mais des failles apparaissent pour renverser cette perspective. Le livre de Rémi Luglia se présente comme un récit d’espoir, une porte d’entrée pour investiguer ces failles et réfléchir à notre monde et à notre relation aux vivants de manière décentrée. Dès l’introduction,..
Une lecture décoloniale des projets miniers de la transition : pistes de réflexion pour déconstruire et (re)penser la transition énergétique
No full textN’y a-t-il pas un paradoxe à présenter l’extraction croissante de minéraux critiques et stratégiques comme essentielle au bien commun dans un contexte de crise écologique? L’objectif de cet article est d’interroger la manière dont le gouvernement provincial québécois et l’industrie minière justifient le développement de projets miniers de la transition. À partir d’une analyse de contenu et de réflexions nourries par les perspectives décoloniales, cet article propose de (re)penser ces projets présentés comme indispensables à la transition énergétique et de s’interroger sur la manière dont la nature est perçue dans les discours des acteurs dominants. Les concepts de colonialité de la nature, d’extractivisme et d’habiter colonial sont mobilisés pour démontrer que ces discours restent ancrés dans une logique extractiviste d’une nature infériorisée, réduite à des ressources naturelles à exploiter. Ces discours perpétuent une manière destructrice d’habiter la Terre. L’approche décoloniale permet de renverser les perspectives et de délégitimer ces discours dominants.Is it not a paradox to present the increasing extraction of critical and strategic minerals as essential to the common good in a context of ecological crisis? The aim of this article is to question the way in which the provincial government of Quebec and the mining industry justify the development of transitional mining projects. Based on a content analysis and reflections fostered by decolonial perspectives, this work proposes to think out or rethink these projects presented as essential to energy transition, and to question how nature is perceived in the narratives of the dominant actors. The concepts of nature coloniality, extractivism and colonial inhabitation are used to demonstrate that these narratives remain rooted in an inferiorized extractivist logic, reduced to natural resources to be exploited. These narratives perpetuate a destructive way of inhabiting the Earth. The decolonial approach reverses perspectives and delegitimizes these dominant narratives
Extraire plus pour sauvegarder la planète ? Justifications d’un projet minier de la transition énergétique
No full textDes projets d’extraction de minéraux critiques et stratégiques fleurissent à travers le monde pour soutenir la demande croissante de minerais présentés comme nécessaires à la transition énergétique et à l’atténuation des changements climatiques. Ces projets suscitent des controverses et rallient ou opposent des acteurs autour de valeurs différentes. Cet article alimente les réflexions sur le caractère contradictoire des stratégies de lutte contre les changements climatiques qui reposent sur l’intensification de l’extraction de ressources minérales. Plus précisément, il étudie les justifications utilisées par les acteurs de l’industrie, des pouvoirs publics et des collectivités locales dans le but d’influencer la légitimité d’un projet minier de la transition. Sur base d’une analyse de contenu d’articles de presse relatifs à un projet controversé de mine de lithium au Québec, l’article mobilise les économies de la grandeur de Boltanski et Thévenot (1991) pour rendre compte des grammaires de justification des acteurs. Les résultats indiquent que la controverse se cristallise autour de deux aspects du monde civique. La transition énergétique n’est quant à elle pas débattue dans les discours publics relatifs au projet étudié. La vision technocentriste et interventionniste de la transition, comme le définit Audet (2016), se trouve verrouillée dans l’opérationnalisation de la transition telle que définie par les pouvoirs publics, sans laisser émerger d’alternatives dans les débats autour de ce projet minier de la transition. L’article contribue aux réflexions sur la nécessité d’ouvrir des espaces de dialogue autour de ce type de projets extractifs permettant de définir collectivement les trajectoires possibles de la transition.New critical and strategic mineral extraction projects are emerging around the world to support the growing demand for minerals that are presented as necessary for the transition to 'green' energy and for the climate change mitigation. These projects are controversial and bring together or oppose stakeholders around different values. This paper contributes to the debate on the contradictory nature of climate change strategies that rely on the intensification of mineral resource extraction. More specifically, it examines the justifications used by industry, government and civil society actors to influence the legitimacy of a transition mining project. Based on a content analysis of press articles related to a controversial lithium mine project in Quebec, the article mobilizes Boltanski and Thévenot's (1991) theory of the economies of worth to account for the grammars of justification used by the various stakeholders. The results indicate that the controversy crystallizes around two aspects of the civic world. The energy transition is not discussed in the public discourse on the project studied. The techno-centric and interventionist vision of the transition, as Audet defines it (2016), is locked into the operationalization of the transition as defined by the public authorities, without allowing other alternatives to emerge in the debates around a mining project of the transition. The article contributes to the discussions on the need to open spaces for dialogue around these projects to collectively define the possible trajectories of the transition
Eofelis edwardsi
No full textEofelis edwardsi (Filhol, 1872) (Fig. 5M) TYPE MATERIAL. — Lectotype, hemi-mandible, MNHN.F.QU9539, phosphorites du Quercy, designated by Ginsburg 1979: 45. NEW MATERIAL. — UM VBO 454, right upper canine. REMARKS This small feloid-like carnivoran was noted by Filhol (1872a) based on a mandible and described by the same author (Filhol 1872b) based on several specimens. Peigné (2000), in a revision of the genus, identified a total of 52 remains of E. edwardsi in many collections but only three from the upper jaw, with only one canine. Until now we had not found any remains of Eofelis in more than fifty years of excavations in the Quercy. Thus, the new discovery UM VBO4511 is significant. This canine is slightly curved, bucco-laterally compressed (mesio-distal diameter = 8.8 mm, bucco-lingual = 5.6 mm; ratio L/W = 1.57) the height from the tip of the crown to the base of the root is 37.3 mm (Fig. 5M 1, M 2). The buccal surface of the crown is slightly convex and the lingual one is quite flat. There are slight crenulations or serrations on the distal edge as indicated by Filhol (1872b: 6) for the lower canine of E. edwardsi and Peigné (2000: 657) for the lower and upper canines of the same species. The ratio L/W for the upper canine is close to that given by Peigné (2000: table 1) for E. edwardsi (1.5). The size is slightly greater than that of a specimen figured by Ginsburg (1979: fig. 10a, b) but the shape is similar. Another species, E. giganteus Peigné, 2000, is much larger and although its upper canine is unknown, cannot fit our specimen. Thus, we attribute UM VBO454 to E. edwardsi which is firmly dated for the first time.Published as part of Bonis, Louis de, Gardin, Axelle & Blondel, Cécile, 2019, Carnivora from the early Oligocene of the ' Phosphorites du Quercy' in southwestern France, pp. 601-621 in Geodiversitas 41 (15) on page 618, DOI: 10.5252/geodiversitas2019v41a15, http://zenodo.org/record/369420
Dinailurictis Helbing 1922
No full textGenus Dinailurictis Helbing, 1922 TYPE SPECIES. — Dinailurictis bonali Helbing, 1922 by original designation. REMARKS The genus was created by Helbing (1922) for fossils found in La Tuque (Lot & Garonne, France) in a molassic continental level which could be dated to the middle Oligocene. The remains consisted of a large scimitar-like upper canine, a P3 and a P4 most likely from the same animal. He added to the same sample a root of a large upper canine from Moissac whose size is similar to that of the La Tuque canine, but the geologic age of which is unknown because there are several levels from the middle and late Oligocene to the early Miocene in the Moissac area. Later, a fragment of maxilla with P3-P4 from the old Quercy collection was described as Nimravus intermedius major Piveteau, 1931. The latter author did not cite Helbing and probably was not aware of his article. The specimen was revised by Ginsburg (1979) and considered as the type species of the new genus Quercylurus Ginsburg, 1979. The main difference between the two genera was the size, Quercylurus being larger than Dinailurictis. The other characters (elongated protocone of P4, irregular minute pleating of the mesial crest of the paracone, m1 more robust) are linked to the larger size (slight allometry) or are also present in Dinailurictis.Published as part of Bonis, Louis de, Gardin, Axelle & Blondel, Cécile, 2019, Carnivora from the early Oligocene of the ' Phosphorites du Quercy' in southwestern France, pp. 601-621 in Geodiversitas 41 (15) on page 616, DOI: 10.5252/geodiversitas2019v41a15, http://zenodo.org/record/369420
Development of an Aeroelastic Simulation Framework for Leading Edge Inflatable Kites
No full textGreen Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Wind Energ
El philtrum novohispano, Creencia a cerca de la magia amorosa en México siglo XVII
No full textTesis para optar por el grado de Licenciatura en Etnohistori
Wind Gust Generation for Wind Turbine Testing via Numerical Methods
No full textThe modelling of gust generation by an array of oscillating vanes at Delft's University of Technology Open Jet Facility is proposed. Focus is placed on identifying relevant in-field gusts that horizontal axis wind turbines are exposed to and reproduction via numerical methods in the wind tunnel setting. A computationally efficient model is developed based on potential flow theory. The model validation showed good results overall, preserving general trends. Several vane configurations are proposed. Veer profiles representative of all atmospheric stability conditions are simulated as well as a maximum profile with veer angle difference between the top and bottom of the rotor of up to 20°. A coupling between the trailing vorticity of the vanes and achieved veer profile is identified. Temporal variation of the streamwise velocity component is achieved, however, not following the intended gust profile. Peak to trough velocity variation of up to 28% of the free stream value is observed. Furthermore, gust length scale was linked to vane spacing, limiting the possibility of small geometric scale testing.Aerospace Engineerin
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