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Economic Impacts of Climate Change and Weather Extremes on Canadian Prairie Mixed Farms2016 January 1900 (has links)
Canadian Prairie agriculture, in general, is expected to benefit under climate change with increasing mean temperatures projected for the immediate future. However, a number of knowledge gaps still exist. Foremost among these is the measurement of the effects of extreme climate events in a given year as well as their long-term impact on the supply of agricultural products, and also the financial situation of farms. In addition, the economic impacts of climate change on livestock operations are relatively under-studied. In particular, knowledge of the impacts on Prairie beef cattle remains more guesswork than research-based evidence. This dissertation assesses the impact of changes in the normal climate as well as the impact of climate extremes by including projected inter-annual climate variability. The economic impact of these changes on crops, beef cattle activities and the viability of farms in mixed operation settings is measured. Correspondingly, this work presents alternative adaptation measures and their likely use in managing mixed farm operations for future extreme weather events. For the analysis, two study sites are selected: (1) the Oldman River Basin of Alberta, called Pincher Creek, and (2) the Swift Current Creek Basin of Saskatchewan, called Swift Current. This study is a part of a larger project entitled “Vulnerability and Adaptation to Climate Extremes in the Americas” and the study sites are intended to represent the project catchment areas in the provinces of Alberta and Saskatchewan.
I develop what I call a MF-CCE model (Mixed Farm model for the economic impact assessment of Climate Change and Extremes). The MF-CCE is a whole farm simulation model that integrates models of beef cattle production, crop production and climate changes into farm level economic decisions. Simulations are conducted over a 30-year period in each climate scenario: the first of these is a baseline climate scenario from 1971-2000, and I also simulate future climate change impacts for the 2041-2070 era. The modelled farms produce enough crops, hay and pasture to support the beef cattle feed demand. Pasture demand and supply are linked by specific pasture requirements and productivity. Beef herd feed grain demand and on-farm supply are linked by a linear programming optimization algorithm. Crop mix for the market is selected through the development of a multi-year linear programming problem that maximizes the present value of gross margins. Crop and hay productivity are estimated through the Food and Agriculture Organization’s (FAO’s) AquaCrop (version 3) modeling framework, while annual pasture productivity is estimated using the Forage Calculator for Native Rangeland obtained from the Saskatchewan Research Council (SRC). The AquaCrop is a water-driven crop simulation model, termed a crop water productivity (WP) model which simulates the yield response of herbaceous crops to water availability and use. The model is believed to be superior in simulating crop yield in the conditions where water is a key limiting factor in crop production (FAO, 2011).
Summarizing the results of the simulation, prairie crop production is expected to benefit under the simulated climate change scenario. Increases in crop productivity generate about 60% higher profits in the Pincher Creek site and about 57% more for the Swift Current site. Due to increases in grain and hay productivity, more area is made available to produce grain for the market. This effectively doubles the crop net return at the Pincher Creek site and triples the crop return at the Swift Current site.
A consideration of future pasture response to the climate change scenario is important in estimating climate change consequences for live beef production as well as on the economic return of a mixed farm. If the pasture productivity decreases, as assumed under the regular pasture yield scenario in the study, appropriate adaptation is necessary for the farm to benefit from future climate change. Under this scenario, beef production activities in the future are projected to gain by 50% in Pincher Creek and 40% in Swift Current compared to the baseline scenario. If pasture productivity under the future scenario increases in a manner similar to crop yield increases, existing pastureland will be enough to maintain beef herds into the future. In turn, this strategy will mitigate the cost of beef herd adaptation during climate extremes, and instead gains from beef cattle production would be 35% higher in Swift Current and 6% higher in Pincher Creek relative to gains under regular pasture yield conditions.
At the farm level, with beef cattle and crop production combined, substantial gains are projected for both of the study sites. Farm net profit is estimated to increase by more than 35% at the Pincher Creek site and more than 140% at the Swift Current site under the future scenario. Income risk will also be lower in this scenario, as highlighted by a lower coefficient of variation of net farm profit. Farm financial indicators tracked in this study – farm cash flow, family cash flow, and farm net worth – all indicate that the farm’s financial position will be much better in the future climate scenario. At the Pincher Creek site, a few problematic liquidity events are forecasted under the future climate scenario, but in light of significant improvements in other economic indicators, overall, this effect is negligible.
The appropriate choice of adaptation strategies for managing beef herds during extreme climate events plays an important role in determining the profitability of not only beef cattle activities, but also the financial position at the whole farm level. However, the choice of adaptations is contextual: the preference of adaptation strategy differs across activities, farms and period of study. For beef cattle activities, maintaining the beef herd without any compromise on herd size and implementing a regular feeding plan is preferred to other adaptation alternatives. At the whole farm level for the Pincher Creek site, culling the herd is preferred under the baseline scenario, while the purchasing feed option is preferred under the future climate scenario. At the Swift Current site, culling the herd is the preferred strategy under both scenarios.
Commodity prices and the cost of farm inputs profoundly affect the economic position of the farm under the future climate change scenario. If commodity prices and cost of production remain the same as under the baseline scenario, future farm net profit is estimated to be 50% higher for the Pincher Creek site and about 25% higher for the Swift Current site, compared to profits under projected future prices. This result implies that the pure effect of climate change could be much higher if costs and prices do not change.
Results of this dissertation indicate that average Prairie mixed farms, as represented by these study farms, remain economically viable under both the baseline and future scenarios. The results also suggest that the overall gain to these farms under a future climate change scenario would be positive. The potential severity of extreme climate events in the future, at least for the future scenario period simulated in this study, would not be significant enough to threaten the future economic viability of Prairie agriculture. However, the research also highlights the importance of policies that support farmers when they endure losses in years of extreme climate events. Further research on evaluating different Best Management Practices (BMPs) in dealing with droughts, for example, would be helpful in taking advantage of future climate change. Policy development to enhance the longer-term adaptive capacity of Prairie farmers, such as development of early warning systems for climate extremes, or the development of drought tolerant cultivars of crops and forages, would be most helpful in coping with climate extremes in the future.
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Vulnerability and decision risk analysis in glacier lake outburst floods (GLOF). Case studies : Quillcay sub basin in the Cordillera Blanca in Peru and Dudh Koshi sub basin in the Everest region in NepalSomos-Valenzuela, Marcelo A. 17 September 2014 (has links)
Glacial-dominated areas pose unique challenges to downstream communities in adapting to recent and continuing global climate change, including increased threats of glacial lake outburst floods (GLOFs) that have substantial impacts on regional social, environmental and economic systems increasing risk due to flooding of downstream communities. In this dissertation, two lakes with potential to generate GLOFs were studied, Imja Lake in Nepal and Palcacocha Lake in Peru. At Imja Lake, basic data was generated that allowed the creation of a conceptual model of the lake. Ground penetrating radar and bathymetric surveys were performed. Also, an inundation model was developed in order to evaluate the effectiveness of a project that seeks to reduce flooding risk by lowering the lake at least 3 meters. In Peru, a GLOF inundation model was created. Also, the vulnerability of the people living downstream in the City of Huaraz was calculated, and the impacts of an early warning system were evaluated. The results at Imja indicated that the lake deepened from 98 m in 2002 to 116 m in 2012. Likewise, the lake volume increased from 35.8 to 61.6±1.8 million m3 over the past decade. The GPR survey at Imja and Lhotse-Shar glaciers shows that the glacier is over 200 m thick in the center of the glacier. The modeling work at Imja shows that the proposed project will not have major impacts downstream since the area inundated does not reduce considerably unless the lake is lowered by about 20 m. In Huaraz, the results indicate that approximately 40646 people live in the potentially inundated area. Using the flow simulation and the Peru Census 2007, a map of vulnerability was generated indicating that the most vulnerable areas are near the river. Finally, the potential number of fatalities in a worst case GLOF scenario from Lake Palcacocha was calculated to be 19773 with a standard deviation of 1191 if there is no early warning system and 7344 with a standard deviation of 1446 people if an early warning system is installed. Finally, if evacuation measures are improved the number reduces to 2865 with a standard deviation of 462. / text
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(Re)interpreting vulnerabilities in the peri-urban Valley of Mexico : toward a deeper and more actionable understanding of poverty in Mexico City’s urban fringeSiegel, Samuel Donal 06 October 2014 (has links)
Settlement patterns on the urban fringe can present a host of threats to sociopolitical and biophysical sustainability, at the personal, municipal, and ecosystem scale. Mexico City’s expansive growth has forced the region’s poorest inhabitants to the farthest margins in the neighboring State of Mexico, where they often live in conditions of personal hardship and settle in patterns that threaten the ecological health of environmentally sensitive areas. Following interviews with practitioners in three periurban municipalities in the Valley of Mexico, this report examines how local land use regulators interpret the vulnerabilities facing communities in their jurisdictions and presents a typology of vulnerabilities. The report explores the processes of politicization that produce and re-produce the vulnerabilities facing individuals, communities and ecosystems. Several concrete policy recommendations are made for incorporating holistic thinking about vulnerability into government decision-making, and resources are provided for further research. / text
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A model to integrate the management of hazards and disasters in the national sustainable development planning of the MaldivesJameel, Ahmed January 2007 (has links)
The small land area of the islands of the Maldives, combined with high population density, makes the communities of these islands vulnerable to natural disaster events such as flooding and tsunami. The Indian Ocean Tsunami on 26 December 2004 impacted 69 islands of the Maldives, killing 82 people, leaving 26 people missing and 15, 000 people internally displaced, making it the worst disaster in recorded history. Following the event, the Government of the Maldives announced a Safer Island Development Programme which seeks to provide the infrastructure necessary to adapt to natural disasters. The key focus of disaster management is to reduce the vulnerability of the communities exposed to hazards and risks, and to help them to enhance their resilience. Efforts have been made to develop safer and sustainable communities in all corners of the developed and developing worlds. New Zealand Government announced its effort to build safe and secure communities in 2007 while at a local level the Christchurch City Council published the Safer Christchurch Strategy in 2005. Overseas, the Community Strategy 2000, outlines the vision of "A safe and strong Island" at Isle of Wight United Kingdom. The islands of the Maldives have natural characteristics which make them vulnerable to disasters such as tsunami. This research has been able to identify the relationship between these characteristics and the natural vulnerability of the islands using the data that was collected following the Indian Ocean Tsunami. Out of 11 island, that have been identified for the Safer Islands Development Programme, one island is found to have very high natural vulnerability and 5 islands a high natural vulnerability, from the island vulnerability index model developed through this study. The Island Vulnerability Index model could be used to enhance the present Safer Island Development Programme island selection criteria, to reduce the possibility of 'building risk' into the infrastructure development on the islands. The index could also be used in the Environmental Impact Assessment studies to address the issue of disasters, effective resources allocation in the Public Sector Infrastructure Programme for 'building back better', and resource identification in land use planning.
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Teenage pregnancy in South African schools : from vulnerability to empowerment / Mothibe Martha MotlalepuleMothibe, Motlalepule Martha January 2012 (has links)
One of the most serious phenomena plaguing families and societies worldwide is teenage pregnancy. In South Africa teenage mothers are permitted to return to schools after giving bith however, not much is done to support these mothers in order to ensure that they are not psychosocially vulnerable and not drop out of school due to possible stress, frustration and lack of scholastic progress. This is where this study is located. This was a Qualitative study that used symbolic drawings accompanied by short descriptive narratives and individual, semi-structured interviews as data collection methods. The study involved 10 teenage mothers who had been re-admitted to schools after giving birth. The participants were aged 15 and 16 and is grades 9 and 10. The findings show that teenage mothers enjoyed family support, had dreams for the future, were anchored in religion and spirituality, had determination and that they had abilities to learn from mistakes. I could not locate a study that had focused on the typical vulnerabilities and empowerment of teenage mothers. Therefore, this study provides useful insight into the factors that are known to render young girls vulnerable to teenage pregnancy and the resultant motherhood and the personal and exological processes that combine in complex ways in order to enable young mothers to cope resiliently. The findings add to theory and have implications for practice / Thesis (MEd (Learner Support))--North-West University, Vaal Triangle Campus, 2013
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MisencountersBesa, Francisco J 01 January 2017 (has links)
We are immersed in an era of supermodernity, an age defined by excesses: of information—the acceleration of historical time—spatial overabundance—the nullification of distance by electronic media and transportation—and an excess of self-reflexive individuality. In this context, the idea of place is giving way to non-places: designed spaces in which social relations are tangential and the boundary between the individual and the group is increasingly mediated. Media plays an important role in the creation of non-places, by favoring a removed form of communication made pervasive and extensive through mobile devices. The blurring of the line between media and actuality extends its definition to encompass not only traditional modes such as radio and television but to a web of systems that regulate and determine relationships between people and collective entities.
As a visual communicator, I seek to understand the evolving relationship between individuals and society by focusing on the spatial-social codes and gestures that permeate and define our interactions. In my thesis project, I explore the boundary between personal, subjective space and social space in their physical manifestations. I perceive the latent tension that exists between what is expressed and what is kept to ourselves in a highly codified environment. I depict the inadequacies of media narratives to portray human drama and the strength of these codified visual systems to represent the drama of living inside their constraints. I look for ways of representing the duality of our shared vulnerability in the alienation of contemporary living perpetuated through media, and our acceptance of its imbalances.
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Metropolitan Manila: A Vulnerability IssueBul-lalayao, Carmela 07 September 2016 (has links)
This practicum is an exploration of the meaning of resiliency within the discourse of the Landscape Architecture discipline. Its significance to ecological thinking and its conjunction to engineering solutions are examined for developing of an integrated approach towards flood mitigation strategies.
Although not the only hazard experienced in the Philippines, floods are the most pervasive. The severity of this natural event and the corresponding disaster is augmented by factors produced within the socio-economic realm. To measure the increasing frequency of disasters from floods, the inherent vulnerability of the study area, Metropolitan Manila and historical reports of said events are considered.
To further comprehend the role of Landscape Architecture within an integrated framework the three types of resiliency organized by Dovers and Handmer are examined and applied at various scale (regional, local, and micro) pertaining to the study area. This part of the practicum explores methods of resiliency in conventional response as well as ecological resiliency to flood events. / October 2016
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Improvising Close Relationships: A Relational Perspective on VulnerabilityRiggs, Nicholas Andrew 14 June 2016 (has links)
In this dissertation, I study the way couples improvise relationships together. I define improvisation as a kind of performance that leads to an interpretive practice where people develop the meanings of their relationships as they perform. Participating in a performance ethnography, my romantic partner, myself, and three other couples reflect on the way we perform together on stage. Adapting the popular improv performance format “Armando” and utilizing post-performance focus groups, I observe how the couples strive to make meaning together and negotiate a joint-perspective about how they played. Ultimately, I argue that attending to the way a couple improvises their relationship off stage can provide key insights into the communication patterns that allow them to share vulnerable experiences and grow close. In the end, I discuss ways that improv techniques and philosophies have informed and guided my own romantic relationship.
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Psychologically Controlling Parenting and Personality Vulnerability to Depression: A Study in Peruvian Late AdolescentsGargurevich, Rafael, Soenens, Bart, Universidad Peruana de Ciencias Aplicadas (UPC) 23 September 2015 (has links)
This study examined associations between two
domain-specific manifestations of perceived psychologically
controlling parenting (i.e., dependency oriented and
achievement-oriented), dimensions of personality vulnerability
to depression (i.e., dependency and self-criticism),
and depressive symptoms in Peruvian late adolescents
(N = 292, 60 % female). Structural equation modeling
showed that perceived dependency-oriented psychological
control was related specifically to dependency and that
perceived achievement-oriented psychological control was
related specifically to self-criticism. Both dimensions of
personality vulnerability played an intervening role in
associations between the domains of psychologically controlling
parenting and depressive symptoms. In addition,
dependency-oriented psychological control interacted with
perceived parental responsiveness in the prediction of
depressive symptoms, such that responsiveness exacerbated
effects of psychological control on depressive
symptoms. Results were similar across maternal and
paternal ratings of parenting. Findings are interpreted in
light of the debate about the cross cultural generalization of
the effects of psychologically controlling parenting.
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A Silent Cry: Visualizing Data on Sex TraffickingSingh, Arvind Daman 12 1900 (has links)
In this era of globalization, human trafficking is emerging as a major theme, with rapid movement of information, capital and people across international borders. Despite the red alert over the issue, the crime of human trafficking remains highly unreported even in the most developed countries like United States of America. This silence over the issue in this country can be attributed to the lack of awareness about its prevalence in our own back yard and the measures available against it. This silence is further compounded by economic, social, cultural and psychological factors. Acknowledging the need to break the silence over this globalized issue, A Silent Cry is an interdisciplinary response in the form of a documentary film. It combines the strengths of cinema and anthropology attempting to humanize the data available on the phenomena. This document contextualizes the issue dealt in the documentary and along with an insight into its production process.
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