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  • 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.
51

Improving some non-structural risk mitigation strategies in mountain regions: debris-flow rainfall thresholds, multi-hazard flooding scenarios and public awareness

Martinengo, Marta 29 September 2022 (has links)
Hydrogeological hazards are quite diffuse rainfall-induced phenomena that affect mountain regions and can severely impact these territories, producing damages and sometimes casualties. For this reason, hydrogeological risk reduction is crucial. Mitigation strategies aim to reduce hydrogeological risk to an acceptable level and can be classified into structural and non-structural measures. This work focuses on enhancing some non-structural risk mitigation measures for mountain areas: debris-flow rainfall thresholds, as a part of an Early Warning System (EWS), multivariate rainfall scenarios with multi-hazard mapping purpose and public awareness. Regarding debris-flow rainfall thresholds, an innovative calibration method, a suitable uncertainty analysis and a proper validation process are developed. The Backward Dynamical Approach (BDA), a physical-based calibration method, is introduced and a threshold is obtained for a study area. The BDA robustness is then tested by assessing the uncertainty in the threshold estimate. Finally, the calibrated threshold's reliability and its possible forecast use are assessed using a proper validation process. The findings set the stage for using the BDA approach to calibrate debris-flow rainfall thresholds usable in operational EWS. Regarding hazard mapping, a multivariate statistical model is developed to construct multivariate rainfall scenarios with a multi-hazards mapping purpose. A confluence between a debris-flow-prone creek and a flood-prone river is considered. The multivariate statistical model is built by combining the Simplified Metastatistical Extreme Value approach and a copula approach. The obtained rainfall scenarios are promising to be used to build multi-hazard maps. Finally, the public awareness within the LIFE FRANCA (Flood Risk ANticipation and Communication in the Alps) European project is briefly considered. The project action considered in this work focuses on training and communication activities aimed at providing a multidisciplinary view of hydrogeological risk through the holding of courses and seminars.
52

Climate action strategies for the University of Texas at Austin

Hernandez, Marinoelle 24 November 2010 (has links)
This report analyzes the current greenhouse gas emissions inventory for The University of Texas at Austin (UT-Austin), reviews the carbon reduction strategies being implemented at UT-Austin and other peer institutions, and offers recommendations for strategies that could reduce greenhouse gas emissions at UT-Austin in the future. / text
53

Miljö- och klimaträttvisa: på kommuners “gröna agendor”? : Svenska kommuners strategiska arbete med att mitigera klimatförändringar / Environmental and climate justice: on municipalities' “green agendas”? : Swedish municipalities' strategic work with climate change mitigation

Johansson, Sara, Lövgren, Klara January 2023 (has links)
Klimatförändringarna är en av vår tids största utmaningar och stater har samlat sig för att begränsa de bakomliggande orsakerna och dess konsekvenser. Genom avtal, agendor och deklarationer planerar stater för gröna ekonomier fria från utsläpp av växthusgaser, med målsättning att förhindra ytterligare störningar i klimatsystemet. Omställningsarbetet för att minska utsläppen av växthusgaser har sipprat ner på kommunal nivå, eftersom deras lokala expertis och förmåga att verka på gräsrotsnivå är avgörande. Forskarsamväldet har synliggjort vikten av att basera omställningen på rättviseaspekter, men definitioner av en rättvis omställning är tvetydiga inom området. Den här studien syftar till att undersöka om och hur miljö- och klimaträttvisa framställs i svenska kommuners strategier för att motverka klimatförändringar. För att uppfylla studiens syfte har tillgänglig strategisk dokumentation av fyra svenska miljö- och hållbarhets-topprankade kommuner analyserats. Med vägledning av JUST-ramverket, som representerar principerna för miljö- och klimaträttvisa, visar resultatet att även om rättviseprinciper inte är huvudsyftet med deras strategier, är aspekter av rättvisa relativt närvarande. Resultatet visar dessutom att kommunernas olikheter och förutsättningar påverkar deras strategiska arbete med klimatförändringar och likaså förekomsten av miljö- och klimaträttvisa. / Climate change is one of the main challenges of the 21st century, and states are coming together intending to mitigate its causes and consequences. Through agreements, agendas and declarations, states aim towards green economies to prevent further disruptions within the climate system. Furthermore, the transition work to reduce greenhouse gas emissions has trickled down to a municipal level, as their local expertise and ability to operate at a grassroots level is vital to the transitional work. Scholars have highlighted the importance of making the transition based on aspects of justice, even though the definition of a just transition is unclear within the field. Therefore, this study aims to investigate how and if environmental and climate justice are occurring in Swedish municipalities' strategies towards climate change mitigation. To do so, available strategic documentation of four top-rated sustainability and climate-aware municipalities in Sweden has been analyzed and interpreted. Through the lens of JUST-framework, representing principles of environmental and climate justice, the results reveal that while justice is not a central point in these strategies, elements of justice are relatively present. The findings indicate that the municipalities' differences and circumstances affect their strategic work with climate change mitigation and whether justice is occurring.

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