• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 336
  • 49
  • 31
  • 17
  • 17
  • 5
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 1
  • 1
  • Tagged with
  • 570
  • 570
  • 145
  • 133
  • 71
  • 67
  • 60
  • 60
  • 56
  • 56
  • 55
  • 54
  • 52
  • 51
  • 51
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
401

Green and Just? - Assessing the Socio-Spatial Distribution of Green Areas in Malmö

Wascher, Laura January 2012 (has links)
Malmö strives to become an attractive and sustainable city by 2030. Continued population growth is a major reason for the need to densify within the existing urban structures. But more inhabitants will also increase pressure on usage and demand for green spaces in the city. Green space is of importance for human well-being and health, especially in urban environments. However the importance of green space is being marginalised in current debate and urban planning, due to the intensive focus on densification. The relevance of green space as an environmental quality has neither been recognised sufficiently in discussions on environmental justice. Previous policy and research has not integrated the socioeconomic dimension when assessing green space distribution. Hence this case study aimed to investigate the socio-spatial distribution of green areas in Malmö. A theoretical framework was compiled including concepts on environmental justice, i.e. the equal distribution of environmental qualities among different social groups. Moreover concepts regarding access (public/private), distance (walkability) and size (utilisation) of green areas were considered. A quantitative analysis was conducted with secondary data. As no comprehensive data set covered more recent years, census data and spatial data from 2005 was used for further analysis. The data was processed and analysed with the help of a geographic information system (GIS). With this approach green space and green areas could be identified. Green areas were categorised according to the level of public access, the size and the respective recommended distances to homes. In addition several socioeconomic factors were extracted from the census data and visualised in GIS. Thus the least advantaged neighbourhoods that lacked various public green areas could be located. On the city level it could be identified that only 13% of the total land area were covered with public green areas, resulting in 46 sq m per inhabitant in 2005. In April 2011 the population of Malmö passed the threshold of 300 000. Assuming that the amount of green areas had not changed since 2005 (unlikely), every inhabitant would have had 38 sq m of public green area in 2011. Considering these numbers in a Swedish context reveals that Malmö is on the bottom line of green area provision. On the neighbourhood level the greatest deficit was found in the eastern parts of central Malmö (e.g. Ostervärn), covering a network of neighbourhoods further south (Norra Sofielund, Södra Sofielund, Almhög, Gullviksborg). In total 32 neighbourhoods were characterised by above average percentage of children, elderly, foreign born or population density. Moreover almost all neighbourhoods lacking green areas were characterised by below average income. The results showed evidence for inequalities in the distribution of green areas between different social groups. This poses an incentive for further investigations in the field of environmental justice and sustainable urban development. Issues like actual walking distance, barriers and safety, qualities of green spaces and user experiences should be investigated in future research. Noting that the data used in this study was from 2005, it is crucial to update and determine shifts in socio-spatial distribution of green areas in the city today. Whilst the population is still increasing, it is likely that even more green space has vanished in the 7 years since 2005. All these issues are essential for a good knowledge based planning of the green and just future of Malmö.
402

It is green, but is it just? : A critical investigation of distributive, procedural and corrective urban environmental justice dimensions in Hamburg, Germany

Büker, Hannah Maria January 2024 (has links)
In this thesis, the public green space provision in Hamburg, Germany is critically examined and put into context by social indicators relating to social class and ethnic background.  Urban green spaces offer a variety of benefits for citizens, ranging from recreation, improving physical and mental health, contribution to urban cooling and climate adaptation as well as providing spaces for biodiversity. Yet, provision and access to public green space is not always equal. This is reflected in the concept of urban environmental justice, which acknowledges that not all societal groups equally benefit from environmental services nor are equally affected by the burdens of environmental pollution. Urban environmental justice is used in this thesis to holistically assess public green space provision, from a distributive, procedural and corrective justice dimension. These dimensions relate to how public green space is distributed in the city, how policies surrounding green space incorporate urban environmental justice concerns, and lastly what measures are in place for correcting potential injustices. The thesis employs a mixed method approach. Critical mapping through QGIS was applied to showcase the distribution and proximity to public green space in the various neighbourhoods in Hamburg. Following this, a policy analysis was performed to investigate the procedural justice dimension. Lastly, semi-structured interviews with five planners and two activists were conducted to illuminate measures for correcting urban environmental injustices related to green space provision. The findings suggest that public green space is not evenly distributed, and issues of access exist in Hamburg. Procedural justice is not fully achieved as a legal framework for urban environmental justice is lacking and the existing policies do not consider the concept adequately. Simultaneously, both supporting and hindering measures for correcting urban environmental injustices exist and corrective justice is not fully achieved either. Overall, the discourse surrounding urban environmental justice should be advanced in Germany and more awareness needs to be raised.
403

[en] ENVIRONMENTAL RACISM AND 2030 AGENDA: AN ANALYSIS OF THE MUNICIPALITY OF RIO DE JANEIRO / [pt] RACISMO AMBIENTAL E AGENDA 2030: UMA ANÁLISE SOBRE O MUNICÍPIO DO RIO DE JANEIRO

NINA BOUQVAR 18 April 2023 (has links)
[pt] Enquanto os impactos das ações humanas no planeta e das alterações climáticas repercutem cada vez mais presentes em nosso cotidiano, é possível perceber desigualdades na distribuição dos efeitos e danos causados por essa relação não amigável entre o ser humano e a natureza, com certos segmentos mais vulneráveis que arcam com a carga mais pesada de seus ônus e prejuízos. Isso não é ocasional, se conectando, muitas vezes, com questões e mazelas já estruturadas nas dinâmicas da sociedade e se sobrepondo às heranças de marginalizações e violências, de modo a perpetuar ineficiências e realimentar injustiças para seus grupos e territórios afetados. O enfoque especial dado aqui, dessa forma, é sobre a interseção entre o debate do racismo e da justiça ambiental, realizado pela ótica conceitual do racismo ambiental, que dialoga também com as discussões relativas à justiça climática e noções como a biopolítica foucaultiana e a necropolítica mbembiana. Pela relevância de sua discussão e por ocorrer casos nas esferas global e local, o texto procura estabelecer relações da temática com a influente Agenda do Desenvolvimento Sustentável, a Agenda 2030, organizada pela ONU, traçando e identificando potencialidades e limitações para a última em promover não só seus cobiçados objetivos, mas também sua capacidade de conectar e resultar em esforços para a mitigação do racismo ambiental. Como recorte de espaço de análise, o texto levanta alguns casos presentes no município do Rio de Janeiro de racismo ambiental e como os itens da Agenda, as chamadas ODS, se aplicam. / [en] While the impacts of human actions on the planet and climate change are increasingly present in our daily lives, it is possible to perceive inequalities in the distribution of the effects and damages caused by this unfriendly relationship between human beings and nature, with certain segments being more vulnerable and bearing the heaviest burden and losses. This is not occasional, often connecting with issues and ills already structured in the dynamics of society and overlapping with the legacy of marginalization and violence, in a way that perpetuate inefficiencies and feedback into injustices to their affected groups and territories. The specific focus given here is in the intersection between the debate on racism and environmental justice, carried out from the conceptual perspective of environmental racism, which also dialogues with discussions related to climate justice and notions such as the Foucaultian biopolitic and the Mbembian necropolitic. Due to the relevance of its debate and the occurrence of cases in the global and local spheres, the text seeks to establish relations between the theme and the influential Agenda for Sustainable Development, the 2030 Agenda, organized by the UN, tracing and identifying capabilities and limitations for the latter in not only promoting its coveted goals, but also its ability to connect and result in efforts to mitigate environmental racism. As a target for analysis, the text investigates some cases present in the city of Rio de Janeiro of environmental racism and how the Agenda items, the so-called SDGs, apply.
404

The hidden costs of the low-emission transition : A Critical Analysis of Lithium Extraction, Green Discourses, and Sweden’s New Giga Battery Factory / Lågemissionsomställningens dolda kostnader : En kritisk analys av litiumutvinning, gröna diskurser och Sveriges nya giga-batterifabrik

Fyrén, Amanda, Nordenswan, Sofia January 2024 (has links)
To reduce anthropogenic greenhouse gas emissions, many European countries are focusing on a low-emission transition by electrifying the transport sector, with special emphasis on electric vehicles (EV). However, this transition requires a large amount of lithium and other critical metals. While the current low-emission transition is portrayed as decreasing climate impact, the transition and its need for metals create new forms of socio-environmental impact. An increasing number of studies are critically examining the effects of the low-emission transition, both nationally and internationally. However, most studies are focused on the Global South with fewer focusing on the effects within and impacts caused by Europe and Scandinavia. Hence, the purpose of this study was to explore the narratives surrounding the low-emission transition, with a primary focus on Sweden and a partial focus on the EU. Additionally, the study aimed to trace the origin of the lithium used in Sweden’s lithium-ion battery production to examine the socio-ecological impacts of its extraction. Using critical discourse analysis, a methodology acknowledging language as a social construct and capable of revealing power dynamics within society, the study found that green imaginaries and techno-centric perspectives are common when discussing the low-emission transition. While specific volumes and origins of imported lithium to Sweden were difficult to obtain, a broader literature review of lithium extraction and its supply chain could infer that the current lithium extraction needed for the Swedish EV battery production, most likely, comes with a broad socio-environmental impact, extending from ecosystem degradation, water scarcity, pollution, and possibly discrimination against indigenous rights. To conclude, the Swedish low-emission transition is despite its green portrayal connected to a hidden but potentially large socio-environmental impact.
405

Sozialräumliche Verteilung von verkehrsbedingtem Lärm und Luftschadstoffen am Beispiel von Berlin / Spatial and social distribution of transportation noise and air pollution in Berlin

Becker, Thilo 19 May 2016 (has links) (PDF)
Hintergrund und Zielstellung Verkehr verursacht, neben seinem großen Nutzen, auch negative Effekte auf die Gesellschaft. Dazu zählen Stau, Unfälle und Umweltbelastungen. Aus Perspektive der sozialen Gerechtigkeit stellt sich die Frage, ob das Niveau der Umweltbelastung, dem Bevölkerungsgruppen ausgesetzt sind, ungleich verteilt ist. Bisher wurde dieser Frage in Deutschland primär aus Perspektive der Gesundheitswissenschaften nachgegangen. Dabei wurden Personen in eher kleinen Stichproben zu ihrer sozio-ökonomischen Situation befragt und die individuelle Belastung durch Schadstoffe an ihrem Wohnort ermittelt. Auf diese Weise konnten bei Luftschadstoffen und Lärm überdurchschnittliche Belastungen von Menschen mit niedrigem sozio-ökonomischen Status nachgewiesen werden. Flächendeckend vorliegende Umweltdaten und Statistiken zu der gesamten Bevölkerung eines großen Untersuchungsgebietes wurden dabei allerdings kaum einbezogen. Deshalb wird in der vorliegenden Dissertation untersucht, wie die Belastung durch verkehrsbedingte Lärm- und Luftschadstoffbelastungen zwischen sozio-ökonomischen Gruppen der Bevölkerung verteilt ist. Dabei werden neben der absoluten Belastung auch die gesundheitlichen Auswirkungen berücksichtigt. Im gewählten Untersuchungsgebiet Berlin werden dafür geeignete räumlich-statistische Bezugseinheiten verwendet, um kleinräumige Belastungsunterschiede flächendeckend zu berücksichtigen. Die normative Bewertung, nach welchen Kriterien Ungleichverteilungen aus gesellschaftlicher und wissenschaftlicher Sicht als „ungerecht“ einzustufen sind, wird bei der deskriptiven Analyse nicht dargestellt. Bewertung der Umwelteffekte Für die Analyse der sozialräumlichen Verteilung von Lärm und Luftschadstoffen ist es sinnvoll, einfach handhabbare Indikatoren zu entwickeln, mit denen die absolute Umweltbelastung zum einen räumlich und zum anderen für sozio-ökonomische Gruppen aggregierbar ist. Dafür werden, entsprechend dem Konzept der externen Kosten, Kostensätze entwickelt. Somit kann zusätzlich zur Analyse der sozialräumlichen Verteilung auch die ökonomische Tragweite der Umweltbelastungen verdeutlicht werden. Mit den externen Kosten werden die Umwelteffekte bewertet, die von den Verkehrsteilnehmern bei ihrer Entscheidung über konkrete Fahrten nicht berücksichtigt werden. Stattdessen sind von den Effekten unbeteiligte Dritte betroffen. Bei Straßen-, Schienen und Fluglärm werden die Gesundheitswirkungen Bluthochdruck, Herz-Kreislauf-Erkrankungen einschließlich Herzinfarkt sowie Belästigungen betrachtet. Bei den Luftschadstoffen wird eine Methode entwickelt, mit der, basierend auf der Luftschadstoffkonzentration in der Außenluft, die durch Stickoxid und Feinstaub verursachten Atemwegs- und Herz- Kreislauf-Erkrankungen betrachtet werden. Grundlage der Bewertung sind jeweils Expositions-Wirkungs-Beziehungen aus der Literatur, die die Risikoerhöhung durch die Umweltwirkungen beschreiben. Außerdem fließen die Behandlungskosten der Krankheiten, die Kosten verlorener Erwerbstätigkeit und die Kosten verlorener Lebensjahre in die Bestimmung der Kostensätze ein. Die Kostensätze je Belastetem und Jahr variieren nach Expositionsniveau. Methodisches Vorgehen Nach der Entwicklung von immissionsbasierten Kostensätzen werden jedem gemeldeten Bewohner in Berlin möglichst exakt die Lärm- und Luftschadstoffbelastung am Wohnstandort sowie sozio-ökonomische Daten zugeordnet. Alle Daten liegen in amtlichen Quellen vor, sind aber bisher nicht zusammengeführt worden. 1. Für Lärm wird die Strategische Lärmkarte verwendet, die in Berlin für alle Wohngebäude die modellierte Lärmbelastung mit dem Lärmpegel LDEN für Straßen-, Schienen-, Flug- und Gesamtlärm enthält. Die Beschränkung auf Hauptverkehrsstraßen als Lärmquelle führt zu Ungenauigkeiten beim dominierenden Straßenlärm. Viele Bewohner, die im Bereich des Straßennebennetzes leben, sind modellbedingt nur sehr niedrigen Lärmpegeln ausgesetzt. Hier ist von einer Unterschätzung der Belastetenzahlen auszugehen. Um diesem methodischen Effekt Rechnung zu tragen, erfolgt eine Quantifizierung der Unterschätzung anhand der detaillierteren Dresdner Strategischen Lärmkarte und einer exemplarischen Vollkartierung eines Stadtteils mit dem Gesamtnetz als Lärmquelle. Darauf aufbauend wird für Berlin eine Sensitivitätsanalyse durchgeführt, bei der Mindestbelastungen durch Straßenlärm in der gesamten Stadt angenommen werden. 2. Bei Luftschadstoffen liegen modellierte Immissionen von Stickstoffdioxid und Feinstaub in Form einer Rasterkarte für die städtische Hintergrundbelastung und als Netzkarte für die Zusatzbelastung durch Verkehr entlang des Hauptstraßennetzes vor. Im Rahmen der Datenaufbereitung wird Straßenabschnitten die jeweilige Belastung zugeordnet. 3. Zur Beschreibung der sozio-ökonomischen Zusammensetzung der Bevölkerung liegen auf der Ebene von Straßenabschnitten Quoten der SGB-II-Empfänger („Hartz IV“-Sozialleistungen) und der Einwohner mit Migrationshintergrund (Ausländer und deren Nachkommen) in der amtlichen Statistik vor. In diesen Straßenabschnitten leben durchschnittlich 120 Einwohner. Der zentrale Schritt der Datenaufbereitung ist die Zusammenführung der Umwelt- und Sozialdaten auf der Ebene der Straßenabschnitte. Anhand der Anzahl der Luftschadstoff und Lärmbelasteten und mit Hilfe der Kostensätze werden die externen Kosten berechnet. Ergebnisse Wird zunächst die Umweltbelastung betrachtet, zeigt sich die ungleichmäßige Verteilung. So sind knapp 30 % der Bevölkerung nach der Strategischen Lärmkarte mit dem Lärmpegel LDEN > 55 dB belastet. Geringe Bevölkerungsanteile sind auch sehr hohen Belastungen ausgesetzt. Wird die Anzahl der Belasteten mit den Kostensätzen der externen Kosten multipliziert, entspricht diese Lärmbelastung knapp 130 Mio. Euro pro Jahr. Den größten Anteil verursacht Straßenlärm, gefolgt von Fluglärm. Entsprechend hoch sind die Belastungen durch Verkehrslärm im Bereich des Flughafens Berlin-Tegel (TXL) sowie am äußeren Rand und innerhalb der Berliner Ringbahn. Durch Luftschadstoffe sind alle Menschen in Berlin belastet, allerdings in unterschiedlichem Ausmaß. Belastungen oberhalb gesetzlicher Schwellenwerte sind in Bezug auf Feinstaub rund 142.000 Menschen und in Bezug auf Stickoxide rund 81.000 Menschen ausgesetzt. Dies entspricht externen Kosten für die Gesellschaft in Höhe von 1,9 Mrd. Euro pro Jahr. Während im Stadtzentrum die Belastung am höchsten ist, fällt sie zum Stadtrand hin tendenziell ab. Werden die externen Kosten durch Luftschadstoffe betrachtet, sind Straßenabschnitte mit hoher Migrationsquote um Faktor 2,8 stärker belastet als Straßenabschnitte mit niedriger Migrationsquote. Es tritt eine mittlere Korrelation zwischen hoher Migrationsquote und hoher Belastung auf. Bei Straßenlärm liegt der Faktor zwischen niedriger und hoher Migrationsquote bei 3,4 (Faktor 1,9 bei SGB-II-Quote). Es besteht bei Lärm eine geringe Korrelation zwischen Migrationsquote und Belastung. Die Strategische Lärmkarte für Straßenlärm beinhaltet nur die Belastung entlang des Hauptstraßennetzes. Die Quantifizierung der Unterschätzung zeigt, dass die Anzahl der Lärmbelasteten mit LDEN > 55 dB etwa 52 % höher ist als in der Berliner Strategischen Lärmkarte angegeben. Die stärksten Unterschätzungen treten im Intervall 55 < LDEN < 65 dB auf. Werden in der Sensitivitätsanalyse Straßenlärmbelastungen für alle Gebäude in Berlin angenommen, bleibt der Belastungsunterschied zwischen hohen und niedrigen Migrations- und SGB-II-Quoten bestehen. Über die Status-quo-Analyse hinaus ermöglichen die Daten einzelne Auswertungen zu Entwicklungen im Zeitverlauf. Werden die Strategischen Lärmkarten 2007 und 2012 miteinander verglichen, können, vorbehaltlich methodischer Einschränkungen, Minderungen bei der Lärmbelastung festgestellt werden. So fanden beispielsweise die Maßnahmen der Lärmaktionsplanung verstärkt in Straßenabschnitten mit hohen Migrations- und SGB-II-Quoten statt. Allerdings kann ein Effekt der Maßnahmen auf die Verteilung der Lärmbelastung nach Migrations- und SGB-II-Quoten nicht festgestellt werden. Das größte Potential zur Lärmminderung in Berlin hat die Verlegung des Flugverkehrs von TXL zum Flughafen Berlin Brandenburg (BER). Während dann die Zahl der Belasteten in Berlin sehr stark sinken wird, wird sie im Land Brandenburg nur leicht ansteigen. Insgesamt wird die Summe aller Fluglärmbelasteten LDEN > 55 dB von 256.000 auf 38.000 sinken. Bedingt durch die strukturell unterschiedliche Dichte und Zusammensetzung der Bevölkerung im Umfeld vom Flughafen BER werden nach Inbetriebnahme von BER fast nur Gebiete mit momentan niedrigen Migrations- und SGB-II-Quoten belastet sein. Schlussfolgerungen sowie weiterer Forschungsbedarf Die dargestellte Ungleichverteilung der Lärm- und Luftschadstoffbelastung markiert vermutlich eher die Untergrenze der realen Situation, da unter anderem die soziale Verteilung innerhalb von Gebäudekomplexen, z. B. bei der Hinterhausstruktur, unberücksichtigt bleibt. Außerdem gibt es Hinweise, dass weitere Benachteiligungen wie schlechte Erreichbarkeit oder bioklimatische Belastungen die Ungleichverteilung zusätzlich verstärken. Anhand der Methodik und der vorliegenden Daten kann nicht analysiert werden, durch welche Ursachen sich die heutige Struktur herausgebildet hat. Aus Untersuchungen zu externen Kosten ist bekannt, dass in Wohnungen mit höherer Lärmbelastung nur geringere Mieten gefordert werden. Diese geringeren Mieten können für Menschen mit niedrigem Einkommensniveau anziehend sein. Damit würde es auch bei einer Minderung der Umweltbelastung weiterhin Ungleichverteilungen geben. Diese Ungleichverteilung sollte ein Anlass sein, die gesundheitsrelevanten Lärm- und Luftschadstoffbelastungen wie folgt zu mindern: 1. Eine Zunahme der Umweltbelastung von sozio-ökonomisch benachteiligten Bevölkerungsgruppen sollte vermieden werden. Als Bewertungsgrundlage kann die durchgeführte flächendeckende Analyse dienen. 2. Das bereits bestehende Belastungsniveau sollte insgesamt gesenkt werden. Nur so erhalten mehr Menschen die Chance, in einer ihrer Gesundheit förderlichen Umgebung zu leben. 3. Die sozial benachteiligten Bevölkerungsgruppen sollten bei der Maßnahmenpriorisierung als zusätzlicher Faktor berücksichtigt werden. Notwendig für eine Fortschreibung des Analyseansatzes und die Übertragung auf andere Untersuchungsgebiete ist die Datenverfügbarkeit. Einerseits müssen Daten zur sozio-ökonomischen Struktur auf der Ebene von möglichst kleinräumigen Bezugseinheiten vorliegen. Andererseits müssen die Umweltdaten flächendeckend die reale Belastung widerspiegeln und von der Datenstruktur her für eine Weiterverarbeitung geeignet sein. Raum für weitere Forschungen bietet die Bewertung der sozio-ökonomischen Daten hinsichtlich ihrer Eignung bei Analysen der sozialräumlichen Verteilung. Neben der Forschung nach Gründen der Ungleichverteilung sollte auch die Rolle der Verursacher und eine mögliche Bilanz zwischen Verursachern und Belasteten betrachtet werden. Methodisch kann dazu u. a. die fortschreitende Verbreitung von Smartphones beitragen, mit denen zukünftig Umweltbelastungen und die Aktivitäten der Menschen in großem Stil gemessen werden können. Dies könnte helfen, bei Lärm- und Luftschadstoffen die teilweise nicht der realen Belastungssituation entsprechenden Daten zu verbessern. Langfristig könnte es damit leichter werden, die Infrastruktur und die Rahmenbedingungen, wie z. B. die Kosten im Verkehr, so zu gestalten, dass die Umweltbelastungen der Menschen sinken. / Background and objectives Besides their big benefits, transport activities also cause negative effects for the society including traffic congestion, accidents and environmental pollution. From the perspective of social justice the question arises whether the level of environmental impacts is unequally distributed between different groups of the population. In Germany this question is primarily answered by health science literature. In relatively small samples people were asked about their socio-economic situation and the level of exposure of pollutants was determined at their places of residence. In doing so, it was possible to prove that people of a lower socio-economic status suffer from levels of air pollution and noise above average. However, extensive environmental data and statistics concerning the whole population of a wider study area were hardly involved. Hence, the present dissertation examines how the burden of traffic related noise and air pollution is distributed between socio-economic groups. In addition to the absolute exposure, health impacts are taken into account. Spatial statistical reference units within the selected research area of Berlin are used in order to consider even small and local differences. However, this descriptive analysis does not involve the normative assessment of whether an unequal distribution should be classified as “unfair” from the perspective of society and science. Valuation of environmental effects For the analysis of the socio-spatial distribution of noise and air pollutants, reasonable and easily manageable indicators are necessary in order to aggregate the absolute environmental levels of exposure spatially as well as for socio-economic groups. For this purpose, cost factors are developed according to the concept of external costs. Additionally to the analysis of the socio-spatial distribution, this procedure allows the depiction of the economic consequences of environmental impacts. External costs value the environmental impacts which are not included in the decision making process of users for their trips. Instead, originally uninvolved third parties are affected by those impacts. Regarding road traffic, railway as well as aircraft noise the relevant health effects are high blood pressure and cardiovascular diseases including infarction and nuisances. Concerning air pollution a method is developed which allows the valuation of respiratory and cardiovascular diseases caused by nitrogen oxide and particulate matter based on the concentration of air pollutants in the outside air. The relation between the dose and its response, which describe the risk increase of environmental effects, are taken from the literature and form the basis of the valuation. The treatment costs of diseases, the costs of employment losses as well as the costs of life years lost are additionally included in the cost factors. The cost factors per person and year vary according to the level of exposition. Methodology After the development of exposure based cost factors every registered resident of Berlin is matched as precisely as possible with the noise and air exposure at the place of residence as well as with socio-economic data. All data is taken from official sources, but have not been merged together before. 1. Noise exposure is stated in the strategic noise map, which includes the modelled noise level of all residential buildings in Berlin differentiated by LDEN for road, railway, aircraft as well as total noise. Limiting the sources of noise to the main roads results in inaccuracies in regards to the dominating road traffic noise. A lot of inhabitants which live along secondary roads are therefore only exposed to very low noise levels depending on the underlying model. Hence, the underestimation of the number of exposed people is expected. In order to deal with this methodological issue, the underestimation is quantified by the detailed strategic noise map of Dresden and an exemplary complete mapping of one district which considers the whole road network as a noise source. Based on this, a sensitivity analysis for Berlin is implemented, which assumes a minimum exposure to road traffic noise throughout the whole city. 2. Data on air pollutants exists as modelled exposure to nitrogen oxide and particulate matter. It is available as a raster map of the urban background exposure as well as a network map of the additional traffic-related exposure along the arterial roads. During the data preparation road segments are matched with the specific exposure. 3. Within the official statistics two indicators describing the socio-economic composition of the population are available on the level of road segments. The first one is the proportion of people receiving social welfare benefits (SGB-II) and the second one is the proportion of people with migration background. On average 120 inhabitants live in one of those road segments. The preparation of the data focuses on merging the environmental and social data on the level of road segments. The external costs are calculated using the number of people exposed to traffic related noise and air pollutants as well as the cost factors. Results When initially concentrating on the environmental pollution, an unequal distribution appears. According to the strategic noise map about 30 % of the population is exposed to noise levels LDEN > 55 dB. A small proportion suffers from high exposures. Multiplying the number of those people with the corresponding cost factors, the total noise exposure results in about 130 million Euro per year. Road traffic noise causes the biggest share of cost followed by aircraft noise. Correspondingly the highest noise pollution occurs in the area of the airport Berlin-Tegel (TXL) and in a wide corridor along the Berlin circular railway called “Ringbahn”. All inhabitants of Berlin suffer from air pollution, albeit to different degrees. In regards to particulate matter about 142,000 people and respectively 81,000 people regarding nitrogen oxide are exposed to levels above the legal threshold values. The costs for society arising hereby accumulate to 1.9 billion Euro per year. While finding the highest levels of exposure close to the city center, the pressure falls with distance to the center. Examining the external costs of air pollution, road segments with a higher proportion of people with migration background are by the factor of 2.8 considerably more affected than road segments with a lower rate of migration. A medium correlation occurs between the rate of migration and a high exposure. Concerning road traffic noise the factor between low and high rates of migration background is 3.4 (factor 1.9 for the rate of social welfare benefits respectively). There is a low correlation between the rate of migration and the level of exposure. The strategic noise map for road traffic noise includes only the exposure along the main roads. The quantification of the underestimation shows that the number of people exposed to noise above LDEN > 55 dB is about 52 % higher than reported in the strategic noise map of Berlin. The highest underestimations occur within the range of 55 < LDEN < 65 dB. The different level of exposure between high and low rates of migration background and of social welfare recipients remains when assuming road traffic noise exposure for all buildings in Berlin within the sensitivity analysis. Beyond the status quo analysis, the data allows an evaluation over time. Comparing the strategic noise maps from 2007 and 2012, reductions in the noise exposure can be determined subject to methodological limitations. Measures of the noise action planning for instance were intensively implemented in road segments with higher shares of people with migration background as well as recipients of social welfare. However, an effect of these measures on the distribution of noise exposure according to migration and social welfare rates cannot be proven. The highest potential for noise reductions lies in the relocation of air traffic from TXL to the airport Berlin Brandenburg (BER). While strongly reducing the number of exposed people in Berlin, the number of exposed people in the state of Brandenburg will only rise to a small extent. Overall the number of people suffering from aircraft noise with LDEN > 55 dB will drop from 256,000 to 38,000. Because of the structurally diverging density and composition of the population surrounding the airport BER, almost only areas with currently low migration and social welfare rates will be exposed after the beginning of operation at the airport. Conclusions and further research The presented unequal distribution of noise and air pollution is likely to mark the lower threshold of the real situation. A reason is among other aspects the social distribution within a complex of buildings where for example the structure of rear buildings is ignored. Furthermore, there is evidence that further discrimination such as poor accessibility or bioclimatic impacts additionally reinforces the unequal distribution. By means of the methodological approach and the available data, it is not possible to analyze the initial causes of the current structure. Research concerning external costs reveals that rents are lower for apartments with higher noise exposure. Lower rents in turn are likely to attract people with low incomes. For this reason, even when reducing the environmental pollution, the unequal distribution would persist. Hence, the unequal distribution gives cause to reduce the exposure to noise and air pollutants as follows: 1. The increase of environmental pollution for people who belong to a socially disadvantaged population group should be prevented. The conducted comprehensive analysis can be used as a basis of assessment. 2. The current level of exposure must be reduced in absolute terms. Only in doing so, more people get the chance to live in an environment which benefits their health. 3. When prioritizing measures the socially disadvantaged population groups should be considered among other factors. Improving the methodological approach and the transfer to other study areas requires the availability of data. On the one hand, data about the socio-economic structure for small reference units needs to be existent. On the other hand, the environmental data needs to mirror the real levels of exposure and its structure must be suitable for further processing. The evaluation of socio-economic data gives room for further research with regard to its suitability for analyzing distributions within the social context. Besides trying to find the causes of the unequal distribution, the role of the polluters as well as the possibility to create a balance between the polluters and the exposed individuals should be considered. From a methodological perspective for instance the increasing use of smartphones can contribute to the measurement of environmental exposures and human activities on a larger scale. This could improve the data quality of noise and air pollutants, which currently only partly meets the real levels of exposure. In the long term it could be easier to shape infrastructures and general conditions such as the costs of transport in a way that the environmental impacts of people is reduced.
406

The conceptualisation of environmental justice within the context of the South African constitution

Feris, Loretta Annelise 12 1900 (has links)
Thesis (LLD)--University of Stellenbosch, 2000. / ENGLISH ABSTRACT: The aim of this dissertation is to conceptualise the principle of "environmental justice". In doing so it attempts to determine its meaning, assess its possible use for the protection of environmental rights in the light of the South African Bill of Rights, and draw, in a comparative manner, on examples from two other jurisdictions, namely the United States of America (USA) and India. In the first part of the study "environmental justice" is defined and thereafter the ways in which the idea of "environmental justice" has found expression in the USA and Indian jurisprudence as well as in legislative and administrative practices in these two countries are analysed comparatively. In reviewing the US experience the study concludes that the courts have shown a conspicuous measure of self-restraint in the conceptualisation of environmental justice. Due to its non-activist and formalistic approach, the judiciary has failed to address systemic environmental inequities, and to carve out remedies whereby environmental injustice could have been dealt with in an effective and meaningful way. The more activist approach of the Indian judiciary, on the other hand, has led to more effective protection of the environment and of people adversely affected by environmental degradation. The judiciary has imposed positive obligations on the state to carry out its social duties as laid down in the Directive Principles of the Indian Constitution. Although India does not have a constitutionally entrenched environmental right, the courts have interpreted the right to life proactively so as to include quality of life. The study concludes by examining possible applications of the principle of environmental justice for the protection of environmental rights in South Africa, assessing the law as it stands and exploring new avenues in the light of the Bill of Rights. In this respect the following guidelines are proposed by this study: o Environmental problems in South Africa must be placed within their specific historical and political context. Consequently environmental injustice must be understood as a form of inequity that impacts on people disproportionately on the basis of race and socio-economic status. The concept "environment" can therefore not be narrowly understood, whether it is being dealt with in the Constitution, legislation or common law. It must be recognised that the concept goes beyond ecosystems and that it includes a multiplicity of relationships, in many of which humans are the focal point. o Environmental justice claims in South Africa may best be framed as constitutional claims. Regard should be had not only to the environmental right in section 24 of the Constitution, but also to other rights that support the notion of environmental justice, such as the rights to life, equality and dignity. o Judicial activism is a key to the promotion of environmental justice. The judiciary plays an important role in ensuring that the state and other actors fulfil their obligation to respect, protect, promote and fulfil the rights in the Bill of Rights. Transformation requires a judiciary that is prepared to reconsider the traditional boundaries of the doctrine of separation of powers and to lay down directives for other branches of government, in particular the executive. / AFRIKAANSE OPSOMMING: Die doel van hierdie proefskrif is om die beginsel "omgewingsgeregtigheid" te konsepsualiseer. Die studie poog dus om die betekenis van hierdie beginsel, sowel as die moontlike gebruik daarvan in die beskerming van omgewingsregte vas te stel in die lig van die Suid Afrikaanse Handves van Regte. Verder poog die studie om deur middel van regsvergelyking insigte te bekom uit voorbeelde in twee jurisdiksies, die Verenigde State van Amerika en Indië. "Omgewingsgeregtigheid" word in die eerste deel van die proefskrif gedefinieer. In die tweede deel word die wyse waarop omgewingsgeregtigheid uitdrukking vind in Amerikaanse en Indiese reg, sowel as in statutêre en administratiewe praktyk vergelykend geanaliseer. In die beoordeling van die Amerikaanse ervaring word tot die slotsom gekom dat die howe 'n ooglopende mate van selfbeheersing toon in die konsepsualisering van omgewingsgeregtigheid. As gevolg van die regsbank se nie-aktivistiese en formalistiese benadering, het dit in gebreke gebly om sistemiese omgewingsongelykhede aan te spreek, en om remedies te ontwikkel wat omgewingsgeregtigheid op 'n effektiewe en betekenisvolle wyse aanspreek. Die aktivistiese benadering van die Indiese regsbank aan die ander kant, lei tot meer effektiewe beskerming van die omgewing en diegene wat nadelig geaffekteer word deur omgewingsbeskadiging. Die regsbank plaas positiewe verpligtinge op die staat sodat die staat sy sosiale pligte kan nakom soos bepaal in die Direktiewe Beginselsin die Indiese Grondwet. Alhoewel Indië nie oor 'n grondwetlik verskanste omgewingsreg beskik nie, het die howe die reg op lewe pro-aktief geinterpreteer sodat dit ook die reg op lewenskwaliteit insluit. Die studie ondersoek verder die moontlike toepassings van die beginsel van omgewingsgeregtigheid vir die beskerming van omgewingsregte in Suid Afrika. Dit beoordeel die huidige reg en ondersoek nuwe rigtings in die lig van die Handves van Regte. In hierdie opsig word die volgende riglyne neergelê in hierdie studie: o Omgewingsprobleme in Suid Afrika moet binne 'n spesifieke historiese en politieke raamwerk geplaas word. Gevolglik moet omgewingsongeregtigheid verstaan word as 'n vorm van onbillikheid wat mense op grond van ras en sosioekonomiese status benadeel. D Die konsep "omgewing" behoort dus nie beperkend geinterpreteer te word nie, hetsy dit gebruik word in die grondwet, wetgewing of die gemene reg. Erkenning moet gegeeword daaraan dat die begrip wyer is as ekosisteme en dat dit 'n veelvoud van verhoudings insluit, baie waarvan mense die middelpunt vorm. D Eise rakende omgewingsgeregtigheid in Suid Afrika moet beskou word as grondwetlike eise. Nie net kom die omgewingsreg vervat in artike124 van die Grondwet ter sprake nie, maar ook aan ander regte soos die reg op lewe, gelykheid en menswaardigheid wat omgewingsgeregtigheid ondersteun. D Regterlike aktivisme is die sleutel tot die bevordering van omgewingsgregtigheid. Die regsbank speel 'n belangrike rol deurdat dit moet verseker dat die staat en ander rolspelers hul plig nakom om die regte in die Handves van Regte te respekteer, te beskerm en te bevorder. Transformasie vereis dus 'n regsbank wat bereid is om die tradisionele grense van die beginsel van magskeiding te heroorweeg en om riglyne neer te lê vir ander takke van die regering, spesifiek die uitvoerende gesag.
407

Environmental risk in Hong Kong and its implications for urban planning

Tang, Wing-yun, Donna., 鄧詠茵. January 2000 (has links)
published_or_final_version / Urban Planning / Master / Master of Science in Urban Planning
408

Potential for synthesis between REDD+ and community forest management as understood through the lens of global political ecology

Chretien, Jonathon 31 January 2013 (has links)
Global climate change is one of the defining issues of the 21st century. The phenomenon of natural climate variation being pushed beyond normal ranges has been fueled largely by industrial activities and those which support them (i.e. land-use change and the over-exploitation of natural resources). The urgency is well established with reports demonstrating an increased occurrence of rare, highly damaging weather events, and shifts in the natural range of species. The necessity of action on climate change has resulted in the development of novel global initiatives designed to address the problem across global and regional scales. Reducing Emissions from Deforestation and forest Degradation (REDD+) is emblematic of this new wave of conservation strategy. It brings together parties which are often seen as opposed on environmental issues in collaborative environmental practise. This thesis explores the development of REDD+ as an effective and equitable solutions to this problem. REDD+ is a policy architecture designed for global deployment, the success of which will depend largely upon the engagement and involvement of local community groups. Community forest management (CFM) may inform the REDD+ design process, and enhance both land-use strategies by way of synergy. The pathway to that point is, however, uncertain and marred with potential pitfalls. This thesis uses the instructive and critical lens of political ecology to assess the potential for integrating greater CFM elements into the REDD+ policy structure. It explores how the narratives of CFM and REDD+ clash at discursive levels, while also identifying elements of each which may make them mutually beneficial. The thesis finds that much of the conflict between positions on REDD+ are the result of contrasting environmental understandings, some of which are informed by negative experiences with past environmental conservation initiatives. Greater community-centric attributes may assist in improving the local and regional acceptability of REDD+ projects by appealing to the “alternative” values of forest-dependent peoples. Some suggested policy modifications are made to improve the overall design of REDD+ to be inclusive of the concerns of forest user groups, and potential areas for future research projects are discussed. / Thesis (Master, Environmental Studies) -- Queen's University, 2013-01-28 14:57:55.951
409

Les compensations socio-environnementales : un outil socio-politique d’acceptabilité de l’implantation ou de l’extension d’infrastructures ? / Social and environmental benefits packages : anew tool to improve the social acceptability for siting or enlarging facilities ?

Gobert, Julie 07 October 2010 (has links)
La présence ou l'installation d'équipements générateurs d'impacts négatifs, comme les aéroports, les centrales électriques, etc. suscitent sur les territoires riverains et au- delà de nombreuses contestations. Divers modes de résolution ont pu voir le jour recourant généralement à de nouvelles formes de concertation, sans toutefois que cette entreprise débouche sur une distribution spatiale plus « juste » des aménités et désaménités environnementales. Au travers des compensations territoriales (discrimination positive à l'embauche des riverains, offre de formations en leur faveur pour les emplois développés par l'infrastructure, aménagement d'espaces verts…) se dissimule l'ambition non seulement de lutter contre les nuisances mais aussi de redistribuer les externalités positives dans le but d'une meilleure équité. Mesures apportées principalement à la collectivité, elles sont en général le résultat de négociations entre différents acteurs : représentants des collectivités locales, exploitants/aménageurs, société civile – associations, syndicats souvent regroupés en coalition. Les compromis compensatoires tentent de concilier des domaines aux légitimités et aux fonctionnements apparemment antagoniques (justice sociale, équité spatiale et efficacité environnementale). Il s'agit cependant de se demander, au travers d'une mise en parallèle de cas d'étude aux Etats-Unis, en Allemagne au Canada et d'une approche synthétique sur la France, si ces outils d'action publique/privée participent réellement à la résorption des injustices environnementales et spatiales dans la mesure où l'utilisation de la compensation socio-environnementale n'est pas sans soulever des questions d'éthique / The siting or the presence of a polluting facility like airports or power plants arouses protests at local and even at regional/national levels. To tackle these environmental conflicts, different solutions have been used and consultation has become an essential procedural component of the siting process. But these initiatives haven't allowed a better spatial distribution of environmental impacts and benefits. “Local community benefits” (affirmative action to promote the hiring of new employees towards residents, financing of community centers…) aim not only at reducing environmental pollutions, but also at improving the allocation of facility benefits to improve spatial and social equity. These collective-based measures result frequently from negotiation with the involved stakeholders: representatives of local governments, of developers, and of the inhabitants – associations, unions, which often strive to create a coalition so as to be more powerful. Compensatory agreements could be therefore a possible way of connecting different dimensions of sustainable development (social justice, spatial equity and environmental efficiency), even if they have apparently antagonistic legitimacy and differently work. In studying different field cases (in the United States, Canada, Germany and a global approach in France) we wonder if this private/public tool can help reducing environmental and spatial injustices, although compensatory measures raise up some ethical questions
410

Risk, Vulnerability, and Hazards: The Industrial Canal and the Lower Ninth Ward

Graves, Jerry V., Jr. 15 December 2012 (has links)
The purpose of this study is to identify, analyze, and describe the social outcomes that may be affected by the environmental risks generated by infrastructure projects; to examine the ways in which vulnerability and exposure to hazards may increase risk in neighborhoods over time; and to examine the implications of addressing the exacerbation of exposure to natural hazards within the traditional environmental justice framework. The Industrial Canal and Lower Ninth Ward were selected as the subjects of this case study because the canal has existed on the perimeter of the neighborhood for nearly one century, isolating Lower Ninth Ward residents from the rest of New Orleans and significantly contributing to two catastrophic flood events. The findings of the study are as follows: (1) the environmental risks associated with infrastructure projects can be magnified when imposed on an already vulnerable neighborhood, and may ultimately result in hazard events which cause displacement and disinvestment. Such consequences can have an impact on micro-level (individual and household) and macro-level (neighborhood) social outcomes; (2) vulnerability and exposure to hazards can initiate a pattern of increased risk that intensifies vulnerability to subsequent hazard events; and, finally, (3) the parallels between the causes and consequences of traditional environmental justice issues and the exacerbation of exposure to natural hazards implies that framing issues relative to natural hazards as matters of justice and articulating the social consequences of not mitigating such hazards can be an excellent way of educating stakeholders and lobbying for resources.

Page generated in 0.0422 seconds