Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 58 for “"Climate impact"”.
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Climate impact metrics for energy technology evaluation
The climate change mitigation potential of energy technologies depends on how their lifecycle greenhouse gas emissions compare to global climate stabilization goals. Current methods for comparing technologies, which assess impacts over an arbitrary, fixed time horizon, do not acknowledge the …
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Constraining climate impact uncertainties from future aviation
Environmental impacts from the aviation sector are in continuous growth. The total sector contribution to anthropogenic climate forcing is approximately 3.5%, representing up to 9% of US greenhouse gas emissions from transportation in 2018. Despite the COVID-19 crisis, it is also expected to grow …
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Climate impact on phytoplankton blooms in shallow lakes
… ecosystems across the globe have responded to climate warming of recent decades. However, correctly attributing observed changes to altered climatic conditions is complicated by multiple anthropogenic influences on lakes. This thesis contributes to a better understanding of climate impacts on …
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Climate Impact Analysis of Direct Air Capture Deployment
… (NET) that can contribute to mitigating climate change impacts by extracting CO₂ from the atmosphere. Given its low technical maturity, uncertainties persist regarding DAC's cost, scalability, and life-cycle emissions. In this analysis I assess liquid and solid DAC technologies powered by …
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Bioenergy and its use to mitigate the climate impact of aviation
… CO2 emissions contributing to anthropogenic climate change by offsetting fossil fuel use, and the work presented in this thesis contributes to the literature on bioenergy and climate change mitigation in three areas. First, this thesis quantifies the maximum potential reduction in global …
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Projecting Planning-Related Climate Impact Drivers for Appalachian Public Health Support
Climate change is impacting the intensity, duration, and frequency of climatic events. With climate change comes a multitude of adverse conditions, including extreme heat events, changes in disease patterns, and increased likelihood and frequency of natural disasters, including in places previously …
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Climate impact of aviation NOx̳ emissions : radiative forcing, temperature, and temporal heterogeneity
… or conduct a large ensemble simulation with climate feedback in the cases where SAT is predicted. We aim to quantify the climate forcing and temperature response of aviation NOx emissions. Eight 400-member ensemble simulations are conducted with an earth system model of intermediate …
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The Net Climate Impact of AI: Balancing Current Costs with Future Climate Benefits
What is the net impact of artificial intelligence on climate change? Existing studies focus on AI's footprint, but few analyze AI's trade-offs. This paper develops a framework to quantify both the Greenhouse Gas (GHG) emissions and the climate change costs and benefits of AI systems, addressing the …
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Aircraft cruise phase altitude optimization considering contrail avoidance
… one of the main contributors to aviation-induced climate impact in recent years. To reduce the climate impact of contrails, mitigation policies such as taxation will be necessary in the future to incentivize jet aircraft operators to reduce contrail production. Contrails form in regions of the …
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Evaluating Fuel-Climate Tradeoffs in Contrail Avoidance
… to be a major contributor to aviation-induced climate change. Operational contrail avoidance via flight re-routing may be an effective and efficient mitigation approach due to the geometry of contrail-forming regions. Contrail avoidance strategies will result in fuel burn penalties and, …
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Semantics-based automatic geospatial service composition
… of environmental modeling for the assessment of climate change impacts and the various types of geospatial data (e.g., formats, scales, and georeferencing systems) increases the complexity challenges. Automatic service composition approaches that provide semantics-based assistance in the process …
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A life cycle based energy and greenhouse gas emission assessment of C&D waste and container glass recycling in the City of Cape Town
… world is consuming energy is growing, and with climate change an immediate concern (Stern, 2006), it is incumbent for the global society to find alternate ways of fuelling human activity. Along with greater energy use, global development is also generating ever-greater quantities of waste. …
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Impact of Anthropogenic Activities on Hydro-Climatological Variables
… the hydro-climatologic variables. In this study, impact of anthropogenic activities on two representative hydro-climatologic variables, temperature and streamflow, is investigated. The variations in temperature occur over larger spatial and time scale, and hence the United States is adopted for …
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A Qualitative Study of Urban Mini-forest Initiation Within the Context of Canada’s Changing Climate
… Miyawaki method and whether they consider the impacts of climate change. Findings revealed that prior environmental experience, concerns about biodiversity loss, anticipation of outcomes, opportunities for community engagement, and community empowerment were common factors. For some, …
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Environmental and economic characteristics of electrofuel production pathways
… renewable power and reduce transportation's climate impact. In this work, I assess the economic and environmental characteristics of four technology pathways for electrofuel production, using the methods of life cycle analysis and techno- economic assessment. In addition, the analysis …
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Assessing environmental benefits and economic costs of aviation environmental policy measures
… for aviation with an increasing environmental impact, specifically in the areas of noise, air quality, and climate change. To ensure sustainable growth for aviation, decision-makers and stake-holders need to be armed with information on balancing environmental and economic interests. The main …
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Rationing & Bayesian expectations with application to the labour market
… work- ing group at the Potsdam Institute for Climate Impact Research (PIK): I provide a toolbox which contains a variety of rationing methods to be ap- plied to micro-economic disequilibrium models of the lagom model family. This toolbox consists of well known rationing methods, and of …
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Nuclear, A Climate Opportunity
… of the past decades. As societal challenges, climate change and urban migration, become more obvious, this phenomenon calls for urgent action. The only path out requires immediate efforts to bring net-carbon emissions to negative numbers. We must provide reliable and clean energy for everyone, …
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Machine learning for strength prediction and optimal design of sustainable concrete formulas
Given the large environmental impact of the concrete industry, which represents 8- 9% of global CO₂ emissions, the design of concrete mixes with low carbon footprints that still meet structural performance requirements will be an essential part of global decarbonization efforts. In this work, we …
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Impactos do El Niño 1997/1998 sobre a dinâmica da Corrente do Brasil
… oceanatmosphere interaction, due to its global climate impact. The phenomenon has two phases, a hot phase (El Niño) and a cold phase (La Niña). ENSO remotely influences the South Atlantic's Subtropical High (SASH) winds pattern, which is the main actor forcing the surface South Atlantic …
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