Esta pesquisa faz uma avaliação de indicadores ambientais relacionados à geração de créditos de carbono contidos nos relatórios de sustentabilidade de 59 empresas brasileiras listadas no ISE (Índice de Sustentabilidade Empresarial) e no ICO2 (Índice de Carbono Eficiente), entre maio e setembro de 2011. O objetivo central deste trabalho é identificar e avaliar informações contidas nos relatórios de sustentabilidade pertinentes à potencialidade de realização de projetos de créditos de carbono por meio de Mecanismo de Desenvolvimento Limpo (MDL) e avaliar a percepção de especialistas sobre o mercado. A metodologia pode ser classificada como pesquisa aplicada; quanto aos objetivos, é exploratória e descritiva; em relação aos procedimentos técnicos, trata-se de uma pesquisa bibliográfica e documental. Abordou-se o problema sob o aspecto qualitativo por meio de análise de conteúdo. Foi realizada, por meio de entrevista, uma pesquisa qualitativa nas empresas certificadoras de projetos de créditos de carbono, a qual demonstrou outros benefícios proporcionados pelos investimentos socioambientais, como economia de custos, marketing empresarial, certificações, dentre outros. Estima-se que os projetos analisados tenham capacidade de obter receitas de 201,7 milhões de Euros (aproximadamente 450 milhões de reais na época) com a comercialização de créditos de carbono. Apesar deste mercado potencial, aparentemente, as empresas não estão se dedicando ao desenvolvimento de projetos de crédito carbono, muitas vezes limitando suas ações à eficiência energética, reestruturação de habitats degradados e redução de emissão de CO2. Fatos que se associam à produtividade da empresa, enquanto a geração de crédito carbono representa um ganho indireto e de longo prazo. / This research is an assessment of environmental indicators associated with the generation of credit carbon contained in the sustainability reports of 59 Brazilian companies listed on the ISE (Corporate Sustainability Index) and ICO2 Index (Carbon Capture), classified in the period from May to September 2011. The main objective of the study is to identify in sustainability reports published relevant information for assessing the potential for projects of carbon credits through the Clean Development Mechanism (CDM). The research methodology in relation to type it is an applied research, the aims are exploratory and descriptive. As technical procedures, we used literature and documentary. In addressing the issue joined to the qualitative method for analyzing the content, and the quantitative method, by using descriptive statistics. The information contained in the indicators of environmental performance reports. A qualitative research was conducted in companies that certify carbon credit projects, which showed other interests and other opportunities for environmental investments. It is estimated that the projects analyzed have earning capacity of 201.7 million euros (about 450 million dollars at the time) from the sale of carbon credits. The projects analyzed demonstrated the ability to foster a carbon market with revenues from the sale of carbon credits of around R$ 450 million. Despite this potential market, apparently companies are not engaged in the development of carbon credit projects, limiting their actions to energy efficiency, restructuring of degraded habitats and reduction of CO2 emissions. Fact that we associate with an immediate connection with the company\'s productivity, while generating carbon credit represents an indirect gain and long term.

As oportunidades do processo de digestão anaeróbia, em aterros sanitários, controlados e sistemas de compostagem, são ligadas à formação de biogás através da biodegradação da matéria orgânica (MO) em ambiente predominantemente anaeróbio. O aterro da Caturrita, localizado na cidade de Santa Maria, possui cerca de 467.929 toneladas de resíduos depositados em uma de suas células. A recuperação total do CH4 desta quantidade de resíduo entre 2013 e 2033, considerando um rendimento na captação de gases de 70%, foi calculada em 17.529.657 m3. O total da receita estimada para o mesmo período, admitindo uma comercialização conservadora de créditos de carbono e energia elétrica, foi de USD 2.131.458 , isto é, um faturamento mensal de USD 8.881. No caso da compostagem, onde podem ocorrer ambientes anaeróbios, o sistema de ponteiras horizontais em camadas utilizado experimentalmente apresentou indícios de diminuição da geração de CH4 com vantagem em relação à compostagem com ponteiras verticais. Para isso, utilizaram-se taxas de aeração de 0,557 m³ ar.d-1.kg-1 de MO em peso seco (PS), com o monitoramento da temperatura interna e da umidade das leiras. As variações das perdas de cargas calculadas para as tubulações da leira experimental com ponteiras horizontais ficaram entre 1,56% e 2,56%, com a temperatura interna máxima em 70,8°C, diferentemente da leira com ponteiras verticais que atingiu uma máxima de 47,1°C, ambas para umidades superiores a 50%. O custo por metro para a implantação em escala real equivale a USD 21,22, considerando o uso de materiais alternativos, mas com resistência mecânica e térmica adequados. Observou-se na leira experimental com ponteiras horizontais proposta a diminuição do NH4 + concomitantemente à elevação do NO3 em menor tempo que na leira com ponteiras verticais. Além disso, com a proposta do sistema de aeração alternativo, a emissão de CH4 seria pouco significativa, pois o processo é basicamente aeróbio. Para a compostagem com ponteiras verticais utilizado na empresa, considerando apenas a emanação de CH4, estima-se o custo ambiental entre USD 2.059 e USD 75.841 por ano para uma quantidade processada de 50.000 t de resíduos agroindustriais. Para o aterro da Caturrita, o custo ambiental pode ser estimado entre USD 7.733 e USD 52.287 por ano. Com uma recuperação de 70% de CH4, através de queima ou conversão em energia elétrica, o custo ambiental máximo estimado cairia para USD 15.686 para a quantidade estimada e disposta no aterro da Caturrita entre 1999 e 2008 de 467.929 toneladas. / The anaerobic digestion process opportunities, about controlled landfills and composting systems, are related to a biogas formation process through the biodegradation of organic substances in a predominantly anaerobic environment. The Caturrita’s landfill, located in Santa Maria – RS - Brazil, has around 467,929 tons of deposited residues in one of its cells. The recovery of methane between 2013 and 2033, considering an availability of 70%, was estimated at 17,529,657 m³. Admitting the carbon credits and electric energy commercialization, during the same period, was estimated and would result in USD 2,131,438, that is, a monthly profits of USD 8,881. In a composting system, where anaerobic environments may occur, the horizontal pipelines system used showed that the CH4 production decreased with advantage in relation to vertical pipelines. For this experiment, Organic matter (OM) was aerated at a rate of 0.557 m3 air·d-1·kg-1, as determined by dry weight (DW), and the internal temperature and humidity of the windrows were monitored. The calculated variation of the pressure loss for the pipelines in the experimental widrow with horizontal pipelines proposal was between 1.56% and 2.56% at a maximum internal temperature of 70.8°C, unlike the windrow with vertical pipelines, which reached a maximum temperature of 47.1°C. In both systems, the humidity was greater than 50%. The cost per metre for commercial scale implementation is equivalent to USD 21.22, considering the use of alternative materials with the necessary mechanical and thermal resistance values. It was observed in the experimental pile with horizontal pipelines proposal the reduction of NH4 + simultaneously to the elevation of NO3 in less time than in the pile with vertical pipelines. Furthermore, with the alternative aeration system, the CH4 emission would be insignificant, because the process is essentially aerobic. For composting system with vertical pipelines used in the company, considering only the emanation of CH4, the environmental cost can be estimated between USD 2,059 and USD 75,841 per year for an amount of 50,000 t of processed agribusiness residues. For Caturrita’s landfill, the environmental cost can be estimated between USD 7,733 and USD 52,287 per year. With a CH4 recovery of 70%, by burning or conversion into electrical energy, the maximum estimated environmental cost would fall to USD 15,686 for the estimated quantity and disposed of in landfill Caturrita between 1999 and 2008 of 467,929 tons.

Made available in DSpace on 2015-04-11T13:54:01Z (GMT). No. of bitstreams: 1 luiz.pdf: 912072 bytes, checksum: fec8d4dd4a3c1419c0e6eb46a1f5ff49 (MD5) Previous issue date: 2012-10-05 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Carbon Credits are an important instrument of payment for environmental services. Although sustainable activities generally focus on carbon sequestration, they produce numerous other environmental services, such as rainfall cycle, biodiversity, soil fertility, etc. A model of economic-environmental management is proposed in this dissertation to give economic incentives to local producers and investors, in order to promote the production of environmental services. The tool for the generation of these services will be the SAF (Agroforestry System), although this model can be applied to other sustainable activities that aim both to the preservation of native forests, or the recovery of degraded areas. The simulation of the model considers the city of Presidente Figueiredo, in the state of Amazonas, Brazil. Two investment funds, managed by an finance institution, will be created. The Investment Fund for Families aims to pay the local farmers, for the environmental services provided, during the first years of production of SAF, while local producers do not receive any income from perennial crops. The Buyer s Security Fund aims to ensure the return of the investment paid by the buyers of environmental services. The exercise performed, simulating a SAF of an hectare with 370 trees, 16 quarterly payments of R$ 78.05 per hectare, or R$ 0.2109 per tree, can be made. From the 5th year on, no other payments for environmental services will be made, while local farmers will have only the income from their SAF. From the 7th year on, the local farmers will be able to pay for new trees, in new areas. The model will have a cycle of 18 years. At the end of the cycle the buyers, of environmental services, will receive the amount of R$6.84, from the Buyer s Security Fund; and the amount from the sale of the carbon credits, after the mentioned 18 years. / Créditos de carbono representam um importante instrumento de pagamentos por serviços ambientais. Embora foquem no seqüestro de carbono, as atividades sustentáveis que recebem investimentos por créditos de carbono produzem inúmeros outros serviços ambientais, tais como: ciclo de chuvas, biodiversidade, fertilidade do solo, etc. Propõe-se a criação de um modelo de gestão econômico-ambiental que dê incentivos econômicos a pequenos produtores locais e a investidores, com o intuito de fomentar a produção de serviços ambientais. A ferramenta para a geração destes serviços será o SAF (Sistema Agroflorestal), embora este modelo possa ser aplicado em outras atividades sustentáveis que objetivem tanto à preservação de áreas nativas, quanto à recuperação de áreas degradadas. São analisadas as condicionantes de risco de investimentos e geração de serviços ambientais. A simulação do modelo será aplicada no município de Presidente Figueiredo, no interior do Estado brasileiro do Amazonas. Serão criados dois fundos de investimentos, gerenciados por um agente de custódia. O Fundo de Investimentos às Famílias visa a pagar aos produtores locais, valores pertinentes ao serviço ambiental prestado, durante os primeiros anos de produção do SAF, enquanto os produtores locais não auferem renda alguma das culturas perenes. O Fundo de Segurança do Comprador visa a assegurar o retorno do investimento aplicado pelo comprador de serviços ambientais. Pelo exercício realizado, simulando um SAF de um hectare com 370 árvores (e/ou touceiras), é possível realizar 16 pagamentos trimestrais de R$78,05, por hectare, ou R$0,2109 por árvore. A partir do 5º ano, o pagamento por serviços ambientais é interrompido, dando lugar, somente, à renda auferida com a comercialização dos produtos do SAF. A partir do 7º ano, os agricultores poderão pagar pelo plantio de novas árvores em outros hectares. O modelo terá um ciclo de 18 anos. Ao final do ciclo será pago, ao comprador de serviços ambientais, ao valor presente, R$6,84 oriundos do Fundo de Segurança do Comprador; mais o valor que fora investido inicialmente, oriundo da comercialização dos créditos de carbono, admitindo-se a variação dos preços dos créditos de carbono, no tempo.

Neste trabalho, cujo enfoque é inédito na literatura, apresentam-se as principais diretrizes para a implementação de um Mecanismo de Desenvolvimento Limpo, bem como as possibilidades de geração de Redução Certificada de Emissão e sua valoração. Por meio de sistemas adequados, indicados em literatura, estimaram-se as quantidades de gás carbônico que poderiam ser obtidos, elegendo-se para este trabalho, o processo de gaseificação de resíduos de biomassa em algumas culturas agrícolas brasileiras. Em relação ao gás carbônico gerado no processo sugere-se, para avaliar a obtenção de créditos de carbono, que sua captura seja feita através da sua fixação na produção de um fertilizante, que teve seu valor estimado no mercado. Para comprovar essa possibilidade fizeram-se experimentos em escala laboratorial, retendo-se o CO2 em hidróxido de amônio. Análises termogravimétricas, espectroscopia no infravermelho, de difração de raios-X e CHN comprovaram a obtenção do bicarbonato de amônio. Para os valores numéricos foram consultadas nas bibliografias referentes, as culturas agrícolas brasileiras com índices de produção de resíduos conhecidos, estabelecendo-se então uma base de dados numéricos para a formação dos valores correspondentes. Os resultados deste trabalho permitem afirmar que existe uma grande potencialidade para o aproveitamento dos gases resultantes da gaseificação dos resíduos de biomassa, principalmente do gás carbônico na produção de um fertilizante e, com a possibilidade de implementação de um Mecanismo de Desenvolvimento Limpo no país. / In this work, whose approach is unknown in literature, the main lines of direction for the implementation of a Mechanism of Clean Development are presented, as well as the possibilities of generation of Certified Reduction of Emission and its valuation. By means of adjusted systems, indicated in literature, the approach amounts of carbonic gas had been raised that could be gotten, choosing itself for this work, the process of gasification of residues of biomass in some Brazilian agricultural cultures. In relation to the carbonic gas produced in the process it is suggested that to quantify the carbon credits, the capture is made through its setting in the production of a fertilizer that had its approach value searched in the market. To prove this possibility experiments in laboratorial scale had become, holding back the CO2 in the fertilizer ammonium bicarbonate. Termogravimetics analyses, spectra infra-red ray, x-rays diffratograms and CHN had been made and had confirmed that the product was the fertilizer ammonium bicarbonate. For the numerical values, it had been consulted in referring bibliographies, the Brazilian agricultural cultures with indices of production of known residues, establishing then a numerical database for the formation of the corresponding values. The results of this wok allow to affirm that a great potentiality for the exploitation of the resultant gases of the gasification of the residues of biomass, mainly of the carbonic gas in the production of a fertilizer exists and, with the possibility of implementation of a Mechanism of Clean Development in the country.

O presente trabalho tem por objetivo analisar a viabilidade financeira para obtenção de créditos de carbono em projetos de eficiência energética, por meio dos indicadores financeiros Valor Presente Líquido (VPL) e Taxa Interna de Retorno (TIR). A partir do desenvolvimento de uma modelagem analítica composta de despesas e receitas existentes em um determinado horizonte de tempo, obtém-se o fluxo caixa resultante do projeto, sobre o qual é calculado o VPL e a TIR em diferentes cenários de receitas advindas da venda dos créditos de carbono. Desta forma, pretende-se apresentar em quais condições a obtenção dos créditos de carbono aumenta o desempenho financeiro de um projeto de eficiência energética e em quais condições este desempenho é reduzido. / The present work has for objective to analyze the financial viability to obtain carbon credits in energy efficiency projects, through the financial indicators Net Present Value (NPV) and Internal Rate of Return (IRR). From the development of an analytical model composed of existing expenditure and revenue in a defined period of time, the cash flow resulting from the project is obtained, which is calculated on the NPV and IRR at different scenarios of revenue resulting from carbon credits. In such a way, it is intended to present in which conditions to obtain the carbon credits grow up the financial performance of a energy efficiency project and in which conditions this performance is reduced.

Orientador: Paulo de Barros Correia / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica / Made available in DSpace on 2018-08-19T21:23:58Z (GMT). No. of bitstreams: 1 Porto_NataliaAddas_M.pdf: 3278634 bytes, checksum: 844ae878f54ff582bbd8d0261e413863 (MD5) Previous issue date: 2012 / Resumo: A humanidade tem selecionado seus sistemas energéticos incorporando, além dos parâmetros de disponibilidade técnica e viabilidade econômica, os impactos ambientais causados por eles. O mercado de créditos de carbono surge neste contexto ao estabelecer mecanismos de mercado para que partes envolvidas na contribuição de redução/remoção de gases de efeito estufa na atmosfera, no âmbito do Protocolo de Quioto, cumpram o acordo quantificado, ao mesmo tempo em que surgem também novas oportunidades para investimentos nos países em desenvolvimento como o Brasil. Assim, saber como funciona esse mercado é um fator crucial para o aproveitamento das conveniências criadas pelo Protocolo de Quioto. Destarte, considerando as dificuldades para precificação de contratos de créditos carbono no mercado brasileiro, principalmente por ser um mercado muito recente, e ainda com o objetivo de originar maiores investimentos em sistemas energéticos através de energia renovável, a dissertação oferece uma contribuição situada nos seguintes focos: análise de contratos de Reduções Certificadas de Emissões (RCEs) e seleção de projetos do Mecanismo de Desenvolvimento Limpo (MDL). Precificação, portanto, compreende determinar medidas de benefício e risco unitário ¿/tCO2e), uma vez que as decisões de contratação são instruídas pelo preço da RCE negociado. O modelo de latisse binomial é a principal ferramenta de precificação empregada neste trabalho, usada para calcular o valor médio esperado da RCE para realização de contratos a termo e de opções. Por sua vez, melhores condições para o comércio das RCEs é obtida por uma abordagem da teoria do portfólio proposta por Markowitz, através de projetos MDL relacionados à produção de eletricidade a partir de fontes renováveis de energia no Brasil, onde a energia oferecida por tais fontes são caracterizadas, sobretudo, pela sazonalidade / Abstract: Humanity has selected energy systems by incorporating, beyond the technical and economic feasibility parameters, also the environmental impacts caused by them. The carbon credit market has appears in this context and brings alternative solutions for countries in Annex I to fulfill their emissions targets under Kyoto Protocol and also help developing countries in constructing or maintaining a clean energy mix. Knowing how this market works is crucial to incorporate all the conveniences brought by Kyoto Protocol. Pricing carbon credit market includes determining benefit and risk measures (¿/tCO2e), since the hiring decisions are instructed by the price of CERs traded. The binomial lattice model is the main tool used in this dissertation for pricing, which allow us to calculate the expected value of CERs for realization of forward and options contracts. Given that renewable energy sources are mainly characterized by seasonality, some sources can hedge others. In this sense, better conditions on trading CERs can be achieved through a portfolio theory approach proposed by Markowitz. Considering the difficulties for pricing carbon credits contracts on the Brazilian market, especially because of its recent characteristic, and with the aim of generating greater investments in the energy systems by using renewable energy sources, the present dissertation offers a contribution on: contract analysis applied to Certified Emission Reductions (CERs) and also on selecting projects from the Clean Development Mechanism (CDM). / Mestrado / Mestre em Planejamento de Sistemas Energéticos

Carbon offsets are often presented as a multi-beneficial way for companies to mitigate their net climate impact while contributing environmental and social benefits on a global and local scale. Critics argue it is used to avoid more meaningful alterations to a company's own operations. Despite the increasing popularity of carbon offsets, little research has explored why companies choose to finance them. This study aims at addressing this research gap by exploring the motives that drive companies to offset emissions, how this fits into their sustainability strategies, and how the overall sustainability strategies are affected by acquiring carbon offsets. A multiple-method approach was deployed, using semi-structured interviews and content analysis. The study examines medium and large-sized companies in Sweden. Results indicate that carbon offsets are generally integrated as a final stage in the fundamental sustainability strategy. No indications could be identified that it has a detrimental effect on the company's overall sustainability initiatives. A model is proposed depicting the motives and drivers of corporate carbon offset financing. Legitimacy, competitiveness, and individual responsibility are three fundamental motives. Further, seven distinct drivers could be identified: labor retention, product differentiation, cost reduction, industry isomorphism, risk minimization, corporate culture, and personal values. These factors, internally or externally driven, incentivize companies to finance carbon offsets. There were two primary factors that acted as obstacles for companies when offsetting emissions. These perceived barriers were the risk of damaged credibility, and the risk concerning additionality and, what is in this study referred to as materiality. Overall, this study sheds light on the motives driving corporate carbon offset financing, and how companies integrate offsets into their broader sustainability strategies. This research is important for understanding how carbon offsets fit into companies' overall sustainability plans, and how policymakers can encourage meaningful corporate action on climate change. As a concluding remark, recommendations are provided for future research within the field.

Increased demand for energy, rising energy costs, and heightened environmental concerns are driving forces that continually press for the improvement and development of new technologies to promote energy savings and emissions reduction. Combined heating and power (CHP), combined cooling, heating, and power (CCHP), and organic Rankine cycles (ORC) are a few of the technologies that promise to reduce primary energy consumption (PEC), cost, and emissions. CHP systems generate electricity at or near the place of consumption using a prime mover, e.g. a combustion engine or a turbine, and utilize the accompanying exhaust heat that would otherwise be wasted to satisfy the building’s thermal demand. In the case of CCHP systems, exhaust heat also goes to satisfy a cooling load. An organic Rankine cycle (ORC) combined with a CHP or CCHP system can generate electricity from any surplus low-grade heat, thereby reducing the total primary energy, cost, and emissions. This research first presents a review of the economical, energetic, and environmental benefits of CHP and CHP-ORC systems for a small office in various climates. Operating the systems 24 hours a day is compared to operating the system during typical office hours and benefits of the CHP system in terms of the EnergyStar and LEED programs are presented. Another objective of this dissertation is to study the critical role of the prime mover on the performance of CHP, CCHP, CHP-ORC, and CCHP-ORC systems under different pricing structures. Three different size natural gas engines are simulated for a small office under different operational strategies such as: follow the facility's electric demand, follow the facility's thermal demand, and follow a constant load. Simple optimizations were carried out to improve the system's performance. Using real prices for electricity and fuel to compute operational costs was compared to using the building's average prices without a CCHP system. Finally, a CCHP system using a load-share turbine for a large office building was examined while considering the source of carbon dioxide emissions, carbon offsetting through purchasing carbon credits, and available capital costs.

Master of Agribusiness / Department of Agricultural Economics / Christine Wilson / Methane digesters are a potential investment for a dairy farm. A digester can lower greenhouse gas emissions, manage manure waste, generate energy, provide fertilizer and recycle bedding. The AgSTAR project of the Environment Protection Agency describes anaerobic digesters as a solution to a problem dairy farmers have always had to solve but that has become more acute with the innovation of larger scale, confined animal feeding operations developed in response to the growing food demands of the world’s larger and more prosperous middle class population – what to do with cow manure. Digesters take cow manure and convert it into energy while also eliminating manure odor. Energy is the primary economic benefit of a digester. A dairy farmer can use the electricity or gas generated from the digester to fuel the energy needs of the farm. Selling gas or electricity on the market is a revenue source that largely determines the level of profit from investing in a digester. This thesis will explore the four economic factors required to make anaerobic digesters a viable economic investment for a 1,500 head cow herd in the United States. It is imperative that farmers are able to obtain a return on the investment as soon as possible as many do not have the capital to invest in a nearly $1 million project. Congress may need to provide additional incentives for farmers and utility companies to take waste and process to energy. The future for methane digesters looks profitable when energy and carbon markets are available and allowed to trade competitively. The federal government may consider focusing on incentives for the utility companies’ infrastructure to make purchases of renewable energy from a digester more economically attractive and efficient. Today, an obstacle for increasing the number of digesters in the United States is the cost associated with moving the energy from the digester and into the national natural gas to grid. Natural gas companies may need to be compensated for that expense plus the potential difficulties of dealing with multiple suppliers or digester owners. Electricity companies have a grid in place to power rural and urban communities. They have spent billions of dollars and decades to establish efficient routing of power to residents and businesses. Manure digesters are mostly located in rural areas that would also require an investment in infrastructure to move the energy from the digester to the power grid. Mandating net-metering would require energy companies to purchase renewable energy, but consumers may see an increase in their cost. Therefore, the answer to increasing the number of manure digesters in the United States may be to direct the incentives to utility companies to invest in expanding infrastructure rather than increasing digester owner subsidies. Although, the REAP grants are helpful for assisting farmers with startup installation costs, there may not be a need to increase that subsidy in the next farm bill if an energy bill includes incentives for energy companies to purchase renewable energy from digesters.

Made available in DSpace on 2016-04-25T18:39:47Z (GMT). No. of bitstreams: 1 Claiton Santin.pdf: 259901 bytes, checksum: 46cb8fdc33594ce86a5177d3ed876c0c (MD5) Previous issue date: 2012-06-27 / Due to the growth of the discussions involving less harmful trade and economic practices to the environment, as well as the use of renewable energy sources, have been increasingly frequent approaches to the Kyoto Protocol and its imposed norms to major economies. Added to these factors the Accounting International Norms in the brazilian scenario, it becomes increasingly important to find ways to clarify the accounting dealings about this question, once it has been responsible for high-value financial turns, currency which need to be properly disclosed in the accounting statements of companies participating in this market. The study performs a qualitative approach, of exploratory feature, aiming a better understanding of the subject, and developed through a literature review. Thus, this study search to analyze the accounting treatment assigned to transactions involving the market of carbon credits, identifying a series of treatments, and the almost complete lack of standardization in the area / Devido à expansão dos debates com o envolvimento de práticas comerciais e econômicas menos agressivas ao meio ambiente, bem como a utilização de fontes de energias renováveis, têm sido cada vez mais frequentes as abordagens sobre o Protocolo de Kyoto e suas normatizações impostas às grandes economias. Em razão de esses fatores e a eles agregada a adesão das Normas Internacionais de Contabilidade no cenário brasileiro, torna-se cada vez mais importante buscar formas de elucidar as tratativas contábeis acerca desse assunto, uma vez que tem sido responsável por giros financeiros de alto valor, numerários estes que necessitam estar corretamente evidenciados nas demonstrações contábeis das empresas que participam desse mercado. O estudo realiza uma abordagem qualitativa, de caráter exploratório, para um melhor entendimento do assunto, sendo desenvolvido por meio de uma revisão bibliográfica. Dessa forma, buscou-se nesta pesquisa analisar o tratamento contábil atribuído às operações que envolvem o mercado de créditos de carbono, e, assim, identificou-se uma série de tratamentos e a quase inexistência de normatização para a área.