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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.
101

Social and strategic dynamics of carbon market actors' behaviors / Dynamiques sociales et stratégiques des comportements des acteurs du marché de carbone

Ashraf, Naeem 15 October 2013 (has links)
Les principaux objectifs de la thèse sont : d'explorer les motivations sociales et stratégiques et leurs conséquences, de modéliser et de décortiquer les mécanismes relationnels et instrumentaux des stratégies des organisations sur le marché du carbone. Pour cela, trois études empiriques ont été menées sur le terrain du marché du carbone régit par le Mécanisme de Développement Propre (MDP) élaboré dans le cadre du protocole de Kyoto. La première recherche exploratoire qui se base sur une étude de cas inductive a été réalisée dans un pays en voie de développement. Les résultats suggèrent que les préoccupations institutionnelles et concurrentielles influencent la stratégie des organisations du marché du carbone. Traitant de l'influence sociale comme opérant au sein d’une structure relationnelle, les deux études suivantes analysent la dynamique du comportement de l'organisation et son réseau relationnel. Les résultats suggèrent que, dans le cadre du marché MDP, l'ancrage et la centralité du réseau des entreprises affectent leurs comportements. Cependant, tout en contrôlant les contingences structurelles d’ordre relationnel à l’échelle des acteurs, les dynamiques co-évolutionnaires liées au réseau et au comportement suggèrent que les motivations instrumentales d’une entreprise sont plus promptes à influencer son comportement. Cette thèse contribue à la littérature sur la stratégie climatique par l'explication des dynamiques comportementales sociales et stratégiques, ainsi que par l’analyse des caractéristiques structurelles du réseau d’acteurs sur le marché carbone. / The main objectives of the dissertation are to explore social and strategic motivations and consequences, and to model and disentangle relational and rational-instrumental mechanisms of carbon market strategies of organizations. To achieve these objectives, three empirical studies were conducted in the context of carbon market that operates under the Kyoto Protocol’s Clean Development Mechanism (CDM). The first inductive case study based exploratory research was carried out in a developing country. Findings suggest that institutional and competitive concerns motivate carbon market strategy of organizations. Treating social influence as operating through relational structure, the next two papers then analyze dynamics of organization’s behavior and its relational network. Results suggest that in the CDM market, firm’s network embeddedness, and centrality affect firms’ behaviors. However, while controlling for certain actor level and relational-structural contingencies, network and behavior co-evolutionary dynamics suggest that firm’s instrumental motivations are more pronounced in influencing the behavior of firms. This dissertation contributes to the climate strategy literature by explicating the social and strategic dynamics of behavior, and network structural characteristics, of the carbon market actors.
102

O Protocolo de Kyoto e os países em desenvolvimento: uma avaliação da utilização do Mecanismo de Desenvolvimento Limpo / Kyoto Protocol and developing countries: analyses of Clean Development Mechanism adoption

Sara Gurfinkel Marques de Godoy 14 February 2011 (has links)
Com base na Nova Economia Institucional, o foco desta pesquisa foi o de identificar os custos de transação existentes nos projetos de MDL (Mecanismo de Desenvolvimento Limpo) e investigar se eles são barreiras para o desenvolvimento do projeto, e se podem afetar a eficiência de projetos já implantados. Mais especificamente, foram analisadas as variáveis que afetam as diferenças entre as reduções de emissões estimadas nos projetos de MDL e as reduções realmente verificadas (Sucesso de Redução - SR), depois do projeto implantado e monitorado. A fim de cumprir esse objetivo, esta pesquisa contou com levantamento de dados secundários relativos aos projetos de MDL realizados em todo o mundo, e dados primários relativos aos projetos brasileiros de MDL. A análise das informações mostrou que os países mais relevantes em número de projetos são Índia, China, Brasil, mas este ranking se altera dependendo da variável analisada (por exemplo, volume de emissão reduzida ou estimada). Os setores mais relevantes em volume de redução são de HFC, N2O, mas este perfil se altera quando analisado o número de projetos, ficando em primeiro lugar biomassa, hidroelétrica e energia eólica. Em relação ao SR, a maior parte dos projetos não apresenta eficiência satisfatória. No entanto, em volume de reduções a maior parte dos projetos cumpre mais que 91% de SR. Os setores mundiais mais eficientes são N2O e HFC (Brasil N2O e troca de energia fóssil), e os setores de resíduos sólidos e agricultura (Brasil, agricultura e resíduos sólidos) são os menos eficientes. Finalmente, esta pesquisa conclui que custos de transação afetam o sucesso da redução de MDL, e os mais importantes são os custos ex-ante, resultantes de problemas de falhas de informação (como, por exemplo, problemas com as organizações que intermedeiam o processo dos MDLs) e problemas de mensuração (problemas relacionados com metodologias dos MDLs). / Based on the New Institutional Economics, the focus of this research was to identify transaction costs in CDM projects (Clean Development Mechanism) and investigate if they can affect project efficiency, and also if they create project development barriers. More specifically, this research analyzed the variables that could affect the differences between CDM estimated emission reduction projects and actual reductions obtained (Reduction Success - RS) after the project has been implemented and monitored. To fulfill this goal, this research included a secondary global CDM projects data survey, and primary data survey related to Brazilian CDM projects. Data analysis showed that the most important countries in terms of number of projects are India, China, Brazil, but depending on the variable analyzed (for instance, emission reduction volume) this ranking could change. The most relevant sectors in emission reduction volume were HFCs, N2O, but this would change when we analyze number of projects, where biomass would come first, followed by hydroelectric and wind energy. When considering RS, most projects do not show satisfactory performance. However, in terms of emission reductions amount, most of the projects achieve more than 91% RS. The most efficient sectors in the world are HFC and N2O (in Brazil, N2O and fossil fuel), and the least efficient sectors are solid waste and agriculture (in Brazil, agriculture and solid waste). Finally, this research concludes that transaction costs affect the success of CDM reductions, and the most relevant are ex-ante costs, resulting from information problem gaps (these problems relate to parties involved in the CDM process) and measurement problems (CDM methodologies).
103

Native tree species based afforestation/reforestation for carbon sequestration: contributions to sustainable development through clean development mechanisms in Ethiopia

Assefa Tofu Chofore 07 1900 (has links)
The daunting tasks of responding to climate change and ensuring sustainable development (SD) are high on the political agenda among world leaders. From the onset, the clean development mechanisms (CDM) outlined in Article 12 of the Kyoto Protocol (KP), state that CDM activities should contribute to SD in the host country while reducing greenhouse gas (GHG) emission. Nevertheless, many scholars have criticized CDM for failing to deliver on its twin objectives. In Ethiopia in particular, there was lack of afforestation/reforestation (A/R) CDM research specific to the nation; specifically, research as to whether A/R-CDM met the stipulated twin objectives of SD and mitigation (reducing GHG). This study was conducted in the Humbo district of Wolyaita Zone, Southern Nations - Nationality and People Regional (SNNPR) state of Ethiopia, where A/R-CDM was implemented in pursuit of these twin objectives. Humbo is located between 6°46’48.47 and 6°41’04.28N; and between 37°48’35.44 and 37° 55’14.51E, between altitudinal gradients 1200 and 1900 m.a.s.l. The climate of the study area is characterized by annual temperatures between 25°C and 28°C, and by total annual rainfall between 800 to 1000 mm. The objectives of the study were to quantify the change of above ground and below ground carbon pools of native tree species; to assess the attractiveness of FMNR forestry practices; to examine A/R-CDM contributions to community level SD; and to assess the effectiveness of climate change mitigation policy founded on native tree species-based A/R-CDM. Data regarding above ground biomass (AGB) and below ground biomass (BGB) carbon pools of native tree species was collected through non-destructive techniques to quantify the change in carbon sequestration and associated carbon trading. A multi-stage random cluster household (HH) sampling approach was used to assess the attractiveness of farmer managed natural regeneration (FMNR) forestry practice. To examine the contribution of A/R-CDM to community level SD, three dimensions of SD were evaluated, namely; (local) environmental, social, and economic. Two indicators were considered per each dimension. With regard to local environmental SD, community access to natural resources, as well as changes to the local climate were considered. With regard to the social dimension, job creation and changes to social support structures were considered. With regard to the economic dimension, economic activities of the area and local skill development were considered. Focus group discussions and key informant interviews were used to triangulate the survey as well as to assess policy perspectives. Results revealed that the Humbo native tree species based A/R-CDM, which employed FMNR forestry practices, sequestered a net total of 73,138; 84,848; 103,769 and 111,657 tCO2e along 2011, 2014, 2015 and 2016 years, respectively, across 2,728 ha. In terms of carbon leakage due to fuel wood collection activity displacement, a net zero was found since the average volume of fuelwood collected from the project area, after the area was closed off, was found to be 5.1 - 6.1 M3, while before the area was closed off, that number was 4.3 M3. This was due to the project employing FMNR forestry practices. Similarly, the leakage due to livestock grazing activity displacement also was found to be a net zero, since the number of animals grazing on land adjacent to the project area after four years of the area’s being closed off reached 11,383 cattle, 429 donkeys and 4,108 goats, unlike 8,684 cattle and 2,288 goats before the project. In other words, the number of livestock owned by farmers on the land adjacent to the project site was not adversely affected by the closing off of the site, which prevented grazing on the area allocated to A/R-CDM. The livestock management training provided by project developer improved the farmers’ rearing efficiency. Another expected leakage due to soil pitting for A/R was also found to be nil since soil disturbance did not take place because of FMNR practices. These results indicated that systematic regeneration of native tree species through FMNR forestry practices is an effective method to develop carbon sinks. From the point of view of FMNR attractiveness, the results revealed that the practice improved land cover change. The use of FMNR avoided the projected eight years reforestation investment cost of US$ 2,751,312.00 which could have been used if plantation forestry was undertaken. This showed that Humbo A/R-CDM might not have happened if FMNR is had not been introduced, as CDM has no pre-finance mechanism. With regard to community level SD contributions, the establishment of forest protection and development farmers’ cooperatives, as well as the granting of communal land-user rights certification, resulted in legal ownership of the land to the community, whereas before, the land was considered “no man’s land,” and subject to open access. The land-user rights and carbon ownership in turn empowered the community to sign a contract with an international carbon credit buyer. In terms of the local microclimate, the regeneration of native tree species was correlated with increased rainfall in the area in June, July, August and September (JJAS) and March, April and May (MAM). This suggested that the native tree species based A/R-CDM project played a role in improving the local microclimate. In terms of sociological SD, the study showed that new employment opportunities were created including tree pruning, thinning, forest guarding, and jobs at the community warehouse and community flourmill. The availability of employment opportunities was significantly higher for those who participated in the Humbo A/R-CDM, when compared to those who didn’t. In terms of social support structures, in less than ten years, seven Humbo A/R-CDM project owner farmers’ cooperatives, initially established as owners of the project, evolved into one forest protection and development Union. This enabled the institutionalization of grassroots organizations towards a common communal and international agenda of care for the environment. In terms of economic effects, the project enabled a carbon credit contract worth a total of US$ 3,873,298.00, signed at the sell rate of US$ 4.4 per tCO2e, for a total of 880,295 tCO2e across a 30 year crediting period. This is a new business model for the community, the country, and global businesses, all doing their part in climate change mitigation - CDM. As of the first A/R-CDM verification, the community received a total of US$ 321,807.2 in 2011. Consequently, the community received 373,331.2 in 2014, 456,583.6 in 2015 and 491,290.8 in 2016. In terms of revenue from logging, selective harvesting is planned to take place in years 12, 24 and 36. The community is projected to earn at least US$ 15,150.00 per ha1 (a total of US$ 3.9 million) from the first forest harvest in year 12 alone. These benefits in emission reduction (ER) and SD suggest that massive cross-dimensional benefits were foregone due to the country’s refusal to welcome A/R-CDM in its first commitment period, despite having 36,434,400 ha of land eligible for A/R. The research results in the area of policy perspectives indicated that the Humbo A/R-CDM project, the only one of its kind in Ethiopia, was made possible by environment related constitutional provisions, especially those pertaining to land-user rights, and the existence of a nationally standardized definition of forest that complies with international range. Additionally, the timely ratification of the Kyoto Protocol (KP), the establishment of a designated national authority (DNA) and a letter of approval by the DNA to the project developer were found to be enablers. Yet, defining land use, clarifying carbon ownership rights and bringing an inclusive benefit sharing mechanism for forest carbon are among the key instruments the country has yet to put in place to prove local readiness for such development opportunities. The Humbo A/R-CDM also undertook voluntary assessments to obtain additional certification in the form of the Climate Community Biodiversity (CCB) certification, and was certified to be of gold standard for its premium. However, there were no benefits to the host community and project developer from the CCB gold standard certification. Such ambiguity could have been cleared from the onset. This implied whenever going for market and/or result based climate change mitigation, it is necessary to understand the provisions. This study revealed that the Humbo native tree species-based A/R-CDM via FMNR forestry practices met the CDM twin objectives as specified in Article 12 of the KP in 1997, namely the double aims of achieving mitigations of GHG emissions and assisting developing countries inSD. Yet, more research is needed to understand all eligible A/R carbon pools sequestered at Humbo A/R-CDM site. / Environmental Sciences / Ph. D. (Environmental Management)
104

Mudanças climáticas e o protocolo de Quioto: desafios jurídicos e ambientais

Silva, Flávia Martins da 16 May 2012 (has links)
Submitted by Rosina Valeria Lanzellotti Mattiussi Teixeira (rosina.teixeira@unisantos.br) on 2015-05-29T14:16:36Z No. of bitstreams: 1 FLAVIA MARTINS DA SILVA.pdf: 497417 bytes, checksum: 0a7e626a4d3f5de72fb63eb68446fdeb (MD5) / Made available in DSpace on 2015-05-29T14:16:36Z (GMT). No. of bitstreams: 1 FLAVIA MARTINS DA SILVA.pdf: 497417 bytes, checksum: 0a7e626a4d3f5de72fb63eb68446fdeb (MD5) Previous issue date: 2012-05-16 / The problem of climate change is one of the major challenges faced by mankind. The situation of the greenhouse effect and the ozone layer hole is the foremost threat to human life. One of the key causes for this situation was the exploration and fossil fuels usage and the high rates of deforestation in the world, mainly in Brazil. The Kyoto Protocol, created during the Conference of the Parties nº III held in the city of Kyoto, Japan in 1997 with the purpose of supplementing the United Nations Framework Convention on Climate Change and establish a quantitative emission reduction limit of greenhouse gas (GHG) for countries under such Convention. At the present time the Kyoto Protocol is the only international climate agreement. The Protocol created flexibility mechanisms to achieve the ultimate goal of the Framework Convention, which is highlighted by the Clean Development Mechanism, which generated the carbon credits market. The mechanism for Reducing Emissions from Deforestation and Forest Degradation with increasing forest carbon stocks in developing countries (REDD) is currently a voluntary mechanism suggested by some countries that take part in the Convention, and recommended to assist developing countries to combat deforestation and degradation especially in tropical forests. The present paper aims to provide an overview of the trajectory of the Kyoto protocol in international environmental law, as well as demonstrate the importance and urgency of the matter of the problem of climatic changes. / O problema das mudanças climáticas é um dos maiores desafios enfrentados pelo ser humano. A situação do efeito estufa e do buraco na camada de ozônio é uma grande ameaça para a vida humana. Uma das maiores causas para esse panorama foi a exploração e uso de combustíveis fósseis e as taxas elevadas de desmatamento no mundo, principalmente no Brasil. O Protocolo de Quioto, criado durante a Conferência das Partes n° 3, realizada na cidade de Quioto, Japão, em 1997, com a finalidade de complementar a Convenção Quadro das Nações Unidas sobre o Clima e estabelecer de maneira quantitativa limites de redução de emissão de gases de efeito estufa (GEE) para os países comprometidos pela Convenção. Atualmente o Protocolo de Quioto é o único Protocolo internacional climático. O Protocolo criou mecanismos de flexibilização para alcançar o objetivo final da Convenção Quadro, dos quais destacamos o Mecanismo de Desenvolvimento Limpo, que gerou o mercado de créditos de carbono. O mecanismo de Redução de Emissão do Desmatamento e Degradação Florestal com aumento de estoques de carbono florestal em países em desenvolvimento (REDD+) é atualmente um mecanismo voluntário sugerido por alguns países partes da Convenção, e recomendado para auxiliar os países em desenvolvimento a combaterem o desmatamento e degradação em especial nas florestas tropicais. O presente trabalho pretende fornecer um panorama sobre a trajetória do Protocolo de Quioto e do problema das mudanças climáticas, bem como mostrar a importância e urgência do tratamento do tema em questão.
105

Mudanças climáticas: um caminho para a avaliação da política pública brasileira para o setor

Lobo, Dênnis Albuquerque January 2008 (has links)
Submitted by Thalita Cristine Landeira Portela Faro (thalita.faro@fgv.br) on 2011-06-20T19:50:48Z No. of bitstreams: 1 1412212.pdf: 4797200 bytes, checksum: 416f2d98a07598babb3fce0cf3008048 (MD5) / Approved for entry into archive by Thalita Cristine Landeira Portela Faro(thalita.faro@fgv.br) on 2011-06-20T19:51:20Z (GMT) No. of bitstreams: 1 1412212.pdf: 4797200 bytes, checksum: 416f2d98a07598babb3fce0cf3008048 (MD5) / Approved for entry into archive by Thalita Cristine Landeira Portela Faro(thalita.faro@fgv.br) on 2011-06-20T19:52:16Z (GMT) No. of bitstreams: 1 1412212.pdf: 4797200 bytes, checksum: 416f2d98a07598babb3fce0cf3008048 (MD5) / Made available in DSpace on 2011-06-20T19:53:28Z (GMT). No. of bitstreams: 1 1412212.pdf: 4797200 bytes, checksum: 416f2d98a07598babb3fce0cf3008048 (MD5) Previous issue date: 2008 / Considering the relevance of the question of climatic changes for the world today, this thesis has as its objective to evaluate Brazil 's public policies for this issue. Starting from an analysis ofBrazil's present environmental policy, it examines the country's programs and actions which are directed towards climatic changes, studies the development of the Clean Development Mechanism projects for Brazil, and evaluates the country's current public policies related to climatic changes. Despite the complexity of the topic, this evaluation uses a methodology which is characterized by both its depth and simplicity, the methodology for the evaluation of public policies developed by Oliveira and Martins (2003). Based on the three principal dimensions to be considered in the evaluation of public policies-- the social, economical and political dimensions-the methodology of Oliveira and Martins (2003) in this study has been adapted to receive, in each dimension, features (variables) and their respective indicators which are related to the question of climatic changes in Brazil. These features having been selected, points for consideration were inserted based on field research in which the interviewees were free to express their preferences. Extending up to the intermediate leveI of evaluation of Oliveira and Martins methodology (2003), this study shows how it is possible to evaluate Brazil's public policies for climatic changes, and pemaps it wiIl also serve to motive the continued development of the model here proposed, with an aim towards offering an instrument for the direct participation of society in the definition of the directions Brazil should take regarding climatic questions. Furthermore, other regions of the world could possibly adopt this methodology, given its flexibility of contextualization. / Diante da relevância da questão das mudanças climáticas para o mundo, esta dissertação tem por objetivo a avaliação da atual política pública brasileira para o tema. Partindo da análise da atual política ambiental brasileira, examina os programas e ações do país voltados para as mudanças climáticas, pesquisa o desenvolvimento dos projetos de Mecanismo de Desenvolvimento Limpo no Brasil, e avalia a sua atual política pública de mudanças climáticas. Essa avaliação, embora a complexidade do tema, utiliza metodologia caracterizada ao mesmo tempo por sua riqueza e simplicidade, qual seja, a metodologia de avaliação de políticas públicas desenvolvida por Oliveira e Martins (2003). Construída com base nas três principais dimensões a serem consideradas quando da avaliação de políticas públicas: dimensões social, econômica e política, a metodologia de Oliveira e Martins (2003) nesta pesquisa é adaptada para receber, em cada dimensão, atributos (variáveis), e seus respectivos indicadores, relacionados com a questão das mudanças climáticas no Brasil. Selecionados os atributos são inseridos ponderadores com base em pesquisa de campo, em que os entrevistados têm a liberdade de expor as suas preferências. Extendendo-se até o nível de avaliação intermediário da metodologia de avaliação de Oliveira e Martins (2003), esta pesquisa revela como é possível avaliar a política pública brasileira de mudanças climáticas, e quiçá servirá de motivação ao contínuo desenvolvimento do modelo aqui proposto, a fim de servir como mais um instrumento de participação direta da sociedade na definição do rumo que o Brasil deve seguir nas questões climáticas, e que inclusive outras regiões do mundo poderão vir a adotar, dada a flexibilidade de contextualização da referida metodologia de avaliação.
106

Uso de sistema de informação geográfica para subsidiar o cálculo de estoque de carbono em florestas no âmbito do mecanismo de desenvolvimento limpo. / Use of geographic information system to subsidize the calculation of forests carbon supply in the scope of the clean development mechanism.

Luiz Alberto Cunha 15 March 2007 (has links)
Com a entrada em vigor do Protocolo de Quioto, intensificam-se as expectativas pela regulamentação de um mercado de créditos de carbono. No caso de esses créditos terem sua origem em projetos de reflorestamento ou de florestamento, conforme previsto pelos chamados Mecanismos de Desenvolvimento Limpo (MDL), vem a ser fundamental o estabelecimento de uma metodologia para quantificação de estoques de carbono armazenados sob a forma de biomassa vegetal. Este trabalho propõe, como um método informatizado para cálculo de estoque de carbono em florestas, um conjunto de funcionalidades e um modelo de dados cadastrais totalmente integrados com um Sistema de Informações Geográficas de arquitetura aberta. A partir de mapas e imagens geo-referenciadas e com base em dados obtidos de pequenos transectos, o sistema calcula a quantidade total de carbono estocada em toda a floresta. Além de permitir apresentar esses resultados para diferentes agentes armazenadores de carbono, como, por exemplo, segmentos de floresta ou cada espécie vegetal, o sistema mantém registro histórico de dados dendrométricos, o que virá permitir a geração de gráficos de curvas de crescimento e, por conseguinte, estimativas futuras. / Increasing expectation for the carbon credit market regulamentation take place as a result of the Kyotos Protocol enforcement. In case of credits that come from reforestation or forestation projects, as foresseen under the Clean Development Mechanism (CDM), it is fundamental to establish a methodology for quantification of carbon stocks stored under the vegetal biomass form. This work proposes, as an informatizated method of forests carbon stocks calculation, a set of functionalities and a cadastre data model totally integrated with an open architeture of Geographyc Information System. Based on maps and images georeferenced on data basis provided by small transectos, the system calculates the total amount of carbon storages all over the forest. Besides allowing to present the results to different storing carbon agents, for instance, forests segments or each vegetal species, the system keeps historical register of dendrometrics data, which will make possible the generation of graphs, curves of growth and, therefore, future evaluation.
107

Estudo de integração energética de rede de trocador de calor e emissão de gases de efeito estufa em processos industriais

Liem, Rosana Maria 19 June 2013 (has links)
Made available in DSpace on 2016-06-02T19:56:51Z (GMT). No. of bitstreams: 1 5317.pdf: 4354756 bytes, checksum: c3428f42cdc8f5cda6298342a6938dab (MD5) Previous issue date: 2013-06-19 / In light of the scientific evidence for global warming, the United Nations established the Framework Convention on Climate Change and defined the Kyoto Protocol that provided opportunities for sustainable social and economic development. The Clean Development Mechanism (CDM) is one of the protocols applicable to developing countries such as Brazil. Opportunities for industries to reduce greenhouse gas (GHG) emissions can be led by thermal energy integration studies. In addition, sustainable processes can result in energy savings as well as help to mitigate GHG emissions. This work presents a study of heat exchanger network (HEN) synthesis in order to reduce energy consumption and GHG emissions, and the benefits are evaluated in terms of energy savings and carbon credits for CDM projects. It was proposed to two case studies using HEN data from literature, one concerns burning fossil fuels, and other one was evaluated the bagasse combustion. Both studies were applied the Aspen Energy Analyzer® software and its performance of the design of the HEN employed the Automatic Retrofit and Automatic Recommend Designs features were evaluated too. GHG emissions were mitigated; the first case confirmed that the carbon credits improve Capital Expenditure Index, returning 13% less in payback depending on fossil fuel price. The second case presents a maximum value of reduction of 26.2% burning bagasse, 7.7% GHG emissions, 30% increase power generation, together with 19,411 carbon credits per year. / Em virtude da constatação inequívoca do aquecimento global, foi estabelecida pela Organização das Nações Unidas (ONU) a Convenção-Quadro sobre Mudança do Clima. No seu âmbito, foi criado o Protocolo de Quioto, que define mecanismos que enquadram responsabilidades e obrigações, abrindo oportunidades de desenvolvimento social e econômico sustentável. Um dos mecanismos estabelecido é o Mecanismo de Desenvolvimento Limpo (MDL), o único aplicável a países em desenvolvimento como o Brasil. Assim, no âmbito industrial existem várias oportunidades de redução das emissões de gases de efeito estufa (GEE) aliados a trabalhos de integração energética. Além do comprometimento sustentável, é possível obter cenários economicamente viáveis devido à redução de energia associada à mitigação das emissões de GEE. O objetivo deste trabalho foi estudar a síntese de rede de trocadores de calor (RTC) na redução do consumo de utilidades e de emissões de GEE, além de contabilizar os benefícios gerados na economia de combustíveis e a obtenção de créditos de carbono ligados a projetos que promovem o desenvolvimento limpo. Foram realizados dois estudos de casos com os dados da RTC obtidos da literatura, um referente à queima de combustíveis fósseis e outro referente à combustão do bagaço. Em ambos os estudos foi utilizado o software Aspen Energy Analyzer®, tendo como opções as ferramentas Automatic Retrofit e Automatic Recommend Designs, sendo estas avaliadas quanto ao seu desempenho na otimização da RTC. Foram mitigadas as emissões dos GEE, sendo que o primeiro caso foi comprovado que os créditos de carbono promovem um retorno financeiro mais rápido de até 13% dependendo do combustível fóssil e no segundo foi obtida uma redução de até 26,2% da queima do bagaço, 7,7% das emissões de GEE, geração extra de energia elétrica de até 30% e crédito de carbono de até 19.411 t CO2 ao ano.
108

Uso de sistema de informação geográfica para subsidiar o cálculo de estoque de carbono em florestas no âmbito do mecanismo de desenvolvimento limpo. / Use of geographic information system to subsidize the calculation of forests carbon supply in the scope of the clean development mechanism.

Luiz Alberto Cunha 15 March 2007 (has links)
Com a entrada em vigor do Protocolo de Quioto, intensificam-se as expectativas pela regulamentação de um mercado de créditos de carbono. No caso de esses créditos terem sua origem em projetos de reflorestamento ou de florestamento, conforme previsto pelos chamados Mecanismos de Desenvolvimento Limpo (MDL), vem a ser fundamental o estabelecimento de uma metodologia para quantificação de estoques de carbono armazenados sob a forma de biomassa vegetal. Este trabalho propõe, como um método informatizado para cálculo de estoque de carbono em florestas, um conjunto de funcionalidades e um modelo de dados cadastrais totalmente integrados com um Sistema de Informações Geográficas de arquitetura aberta. A partir de mapas e imagens geo-referenciadas e com base em dados obtidos de pequenos transectos, o sistema calcula a quantidade total de carbono estocada em toda a floresta. Além de permitir apresentar esses resultados para diferentes agentes armazenadores de carbono, como, por exemplo, segmentos de floresta ou cada espécie vegetal, o sistema mantém registro histórico de dados dendrométricos, o que virá permitir a geração de gráficos de curvas de crescimento e, por conseguinte, estimativas futuras. / Increasing expectation for the carbon credit market regulamentation take place as a result of the Kyotos Protocol enforcement. In case of credits that come from reforestation or forestation projects, as foresseen under the Clean Development Mechanism (CDM), it is fundamental to establish a methodology for quantification of carbon stocks stored under the vegetal biomass form. This work proposes, as an informatizated method of forests carbon stocks calculation, a set of functionalities and a cadastre data model totally integrated with an open architeture of Geographyc Information System. Based on maps and images georeferenced on data basis provided by small transectos, the system calculates the total amount of carbon storages all over the forest. Besides allowing to present the results to different storing carbon agents, for instance, forests segments or each vegetal species, the system keeps historical register of dendrometrics data, which will make possible the generation of graphs, curves of growth and, therefore, future evaluation.
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Uma abordagem institucional do mecanismo de desenvolvimento limpo: o caso da suinocultura da pequena propriedade rural / An institutional approach of the clean development mechanism: the case of the pig breeding of the small rural property

Alves, Yony Brugnolo 21 July 2009 (has links)
Made available in DSpace on 2017-07-10T18:33:42Z (GMT). No. of bitstreams: 1 Yony Brugnolo Alves.pdf: 1066625 bytes, checksum: 2ce17eca98b273fd4822609801962531 (MD5) Previous issue date: 2009-07-21 / The intensification of the related problems to the greenhouse have in recent decades called the attention and committed efforts of the civil society to the treatment of this serious context resulting from the man acts. From this environmental concern, social and development, it was ratified in February 2005 the Kyoto Protocol, whose premise is the creation of trade market mechanisms that allow industrialized countries a significant reduction of pollutants gases emissions in nature. Under the subjects covered by the Kyoto Protocol, it is pointed out the Clean Development Mechanism (CDM) and the establishment of a market of carbon credits. In this scenario, developing countries can participate in this market selling carbon credits to countries which have outstanding responsibility in the emission of harmful gases to the environment. However, the institution of the carbon credits market and the establishment of the CDM require an institutional framework to rule, according to the language adopted by the New Institutional Economy, the "rules of the game . Opportunely, this research investigates the institutional aspects of this scenario and the conditions to rule the CDM projects in Brazil, highlighted the main bureaucratic and sometimes, technical barriers, that hinder or even prevent the entry of Brazilian companies in the international carbon credit market. The discussions, analysis and findings presented address the institutional constraints and the estimates about the gains that can be obtained from the CDM, having as a case study a swine farm located in Toledo, a city located in west of Paraná - Brazil. The found results indicate that, partially, the institutional environment of the carbon credits market is not sufficiently clear to the extent of encouraging the entry of Brazilian firms in this context, and the constant changes that occur therein confuse the economic agents. Furthermore, it is observed that the execution of a CDM can bring gains of technical, economic, social and especially environmental order. / A intensificação de problemas relacionados ao Efeito Estufa tem, nas últimas décadas, chamado a atenção e mobilizado esforços da sociedade civil e organizada no mundo todo para o tratamento desse grave contexto resultante da ação do homem. Essa preocupação de abrangência ambiental, social e de desenvolvimento, levou em fevereiro de 2005, à ratificação do Protocolo de Quioto, cuja premissa é a criação de mecanismos de mercado que viabilizem aos países industrializados uma relevante redução na emissão de gases poluentes na natureza. Dentre as matérias contempladas pelo Protocolo destaca-se o Mecanismo de Desenvolvimento Limpo (MDL) e a instituição de um mercado de créditos de carbono. Nesse cenário, os países em desenvolvimento podem participar vendendo créditos de carbono aos países que têm destacada responsabilidade na emissão de gases nocivos ao meio ambiente. Todavia, a instituição do mercado de créditos de carbono e a instauração do MDL exigem um arcabouço institucional para reger, conforme a linguagem adotada pela Nova Economia Institucional, as regras do jogo . Oportunamente, a presente pesquisa investiga os aspectos institucionais desse cenário e as condições que regulamentam os projetos de MDL no Brasil, apontado as principais barreiras burocráticas e por vezes, técnicas, que dificultam ou até mesmo inviabilizam o ingresso das empresas brasileiras no mercado internacional dos créditos de carbono. As discussões, análises e constatações apresentadas abordam as limitações institucionais e as estimativas acerca dos ganhos que podem ser obtidos a partir do MDL, tendo como estudo de caso uma granja suína situada na cidade de Toledo, região oeste do Paraná Brasil. Os resultados encontrados apontam que, em partes, o ambiente institucional do mercado de créditos de carbono não está suficientemente claro a ponto de incentivar o ingresso das empresas brasileiras nesse contexto, e as constantes modificações que nele ocorrem confundem os agentes econômicos. Por outro lado, é observado que a montagem e execução de um MDL podem trazer ganhos de ordem técnica, econômica, social e principalmente ambiental.
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An estimate of carbon footprint of Ekurhuleni Health District office and provincial clinic employees

Elimi, Ibrahim O 02 1900 (has links)
Climate change is regarded as the greatest threat facing the world today. The Intergovernmental Panel on Climate Change (IPCC) concluded that climate change is caused by human activities, as a result of greenhouse gases (GHGs) being emitted into the atmosphere. Scientific literature on the impact of climate change is well documented, especially for the health sector. The mission of the Gauteng Department of Health (GDoH) is to “contribute towards the reduction of the burden of diseases in all the communities in Gauteng”. Ekurhuleni Health District is part of GDoH and shares a similar mission. However, this mission is under threat due to the direct and indirect impact of climate change on the public health sector. Therefore, it is essential for Ekurhuleni Health District and Provincial Clinics to take measures to reduce their contribution to climate change in the light of improving the health of their constituent. This study estimates the carbon footprint of the employees of Ekurhuleni Health District and Provincial Clinics and determines the knowledge and perception of climate change among managers and operational employees. The methodologies of the Greenhouse Gas Protocol (GHGP) and the Department of Environmental Forestry and Rural Affairs (DEFRA) were used to quantify the carbon footprints of the employees of the Ekurhuleni Health District and Provincial Clinics. A content analysis was applied to determine the knowledge and perception of climate change. The study revealed that Scope 2, indirect emissions (electricity), accounts for 92% (35150 t CO2e) of the total carbon footprints for the period of five years, 2010-2014. Scope 1, direct emission (vehicles), is responsible for 4% (1362 t CO2e) and Scope 3, indirect emissions for ICT, for 2% (862 t CO2e), office paper 1% (181 t CO2e) and air conditioners 1% (458 t CO2e). The majority of employees demonstrated basic knowledge of climate change. However, the concept of GHGs was unfamiliar to most of the employees. In terms of perceptions of climate change, the majority of employees were concerned about the future of the planet and climate change and believed that climate change will impact their job description. The study recommends the following mitigation measures, among others, to reduce carbon footprints: (1) electrical vehicles; (2) substituting personal desktops with laptops; and (3) substituting HFC-23 air conditioner refrigerant with R410A. These recommendations have the potential to reduce the carbon emissions by 2445 t CO2e for the period of five (5) years and save R7 875 089 from fuel and power consumption. Furthermore, the District Office and Provincial Clinics can generate a revenue of R293 400 by registering for a CMD project for five years or R1 173 600 for the duration of the project (20 years). / Environmental Sciences / M. Sc. (Environmental Management)

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