190 research outputs found
Forest carbon accounting methods and the consequences of forest bioenergy for national greenhouse gas emissions inventories
While bioenergy plays a key role in strategies for increasing renewable energy deployment, studies assessing greenhouse gas (GHG) emissions from forest bioenergy systems have identified a potential trade-off of the system with forest carbon stocks. Of particular importance to national GHG inventories is how trade-offs between forest carbon stocks and bioenergy production are accounted for within the Agriculture, Forestry and Other Land Use (AFOLU) sector under current and future international climate change mitigation agreements. Through a case study of electricity produced using wood pellets from harvested forest stands in Ontario, Canada, this study assesses the implications of forest carbon accounting approaches on net emissions attributable to pellets produced for domestic use or export. Particular emphasis is placed on the Forest Management Reference Level (FMRL) method, as it will be employed by most Annex I nations in the next Kyoto Protocol Commitment Period. While bioenergy production is found to reduce forest carbon sequestration, under the FMRL approach this trade-off may not be accounted for and thus not incur an accountable AFOLU-related emission, provided that total forest harvest remains at or below that defined under the FMRL baseline. In contrast, accounting for forest carbon trade-offs associated with harvest for bioenergy results in an increase in net GHG emissions (AFOLU and life cycle emissions) lasting 37 or 90 years (if displacing coal or natural gas combined cycle generation, respectively). AFOLU emissions calculated using the Gross-Net approach are dominated by legacy effects of past management and natural disturbance, indicating near-term net forest carbon increase but longer-term reduction in forest carbon stocks. Export of wood pellets to EU markets does not greatly affect the total life cycle GHG emissions of wood pellets. However, pellet exporting countries risk creating a considerable GHG emissions burden, as they are responsible for AFOLU and bioenergy production emissions but do not receive credit for pellets displacing fossil fuel-related GHG emissions. Countries producing bioenergy from forest biomass, whether for domestic use or for export, should carefully consider potential implications of alternate forest carbon accounting methods to ensure that potential bioenergy pathways can contribute to GHG emissions reduction targets
Gathering around stories: Interdisciplinary experiments in support of energy system transitions
This paper explores the creative uses of stories and storytelling to engage groups and individuals with consideration of changes in energy systems across time and place. It summarises three story-based experiments that responded to the theme of ‘energy utopias’. These are drawn from the three core strands of a much wider body of work undertaken within the Stories of Change project. This took stories as a central motif and organising device to refresh public and political conversations about energy and decarbonisation. Our hypothesis was that stories could offer a popular and engaging route into thinking about the past and present of humanity’s lives with energy and a lively way of imagining possible futures. We also wanted to test the degree to which stories could offer a shared intellectual space that might support both interdisciplinary and co-productive working for a core team that includes social science, humanities, media, computing and design researchers as well as creative and community partners. The paper considers some of the practical, methodological and theoretical considerations and reflects on the strengths and limitations of stories as both motif and technique in supporting action on climate change
Building smart cities, the just way. A critical review of “smart” and “just” initiatives in Bristol, UK
This article investigates the application of the “smart cities” and “urban climate justice” concepts to two urban initiatives based in Bristol, UK. Both ideas are increasingly popular in academic literature. Yet, little is known about their understanding by the practitioners such as policymakers, third sector organisations and citizens. Two case studies, a community-based energy efficiency initiative, and a local authority electric vehicle policy were critically reviewed using discourse analysis. The method helped to reveal the explicit, implied and obscured aims of the examined initiatives. Using discourse analysis, the researchers developed a heuristic which could improve traditional policy analysis approaches. The examination of case studies illustrates how practitioners understand the notions of “urban climate justice” and “smart cities” and whether their conceptualisations differ from those present in the academic literature. Finally, the paper offers methodological suggestions for embedding justice in “smart” initiatives at each stage of policy and project design
Competing coalitions: The politics of renewable energy and fossil fuels in Mexico, South Africa and Thailand
This paper analyses why middle-income countries incentivize renewable energy despite inexpensive domestic fossil fuel resources and lack of international support. We examine the politics of renewable energy programs in Mexico, South Africa and Thailand. All three countries hold abundant local fossil fuel and renewable energy resources. We argue that renewable energy programs become implementable policy options in fossil fuel resource-rich middle-income countries when coalitions of powerful political actors support them. This study presents an analysis of the domestic coalitions in support of and those in opposition to renewable energy policies from a discourse network perspective. Discourse networks reflect actors and the arguments they share to advance or hamper the policy process. The analysis draws on a data set of 560 coded statements in support or opposition of renewable energy from media articles, policy documents and interviews. Findings show similar structures of competing coalitions in all three countries, with the discourse in all three countries revealing strong linkages between environmental and economic considerations
Mapping and monitoring carbon stocks with satellite observations: a comparison of methods
Mapping and monitoring carbon stocks in forested regions of the world, particularly the tropics, has attracted a great deal of attention in recent years as deforestation and forest degradation account for up to 30% of anthropogenic carbon emissions, and are now included in climate change negotiations. We review the potential for satellites to measure carbon stocks, specifically aboveground biomass (AGB), and provide an overview of a range of approaches that have been developed and used to map AGB across a diverse set of conditions and geographic areas. We provide a summary of types of remote sensing measurements relevant to mapping AGB, and assess the relative merits and limitations of each. We then provide an overview of traditional techniques of mapping AGB based on ascribing field measurements to vegetation or land cover type classes, and describe the merits and limitations of those relative to recent data mining algorithms used in the context of an approach based on direct utilization of remote sensing measurements, whether optical or lidar reflectance, or radar backscatter. We conclude that while satellite remote sensing has often been discounted as inadequate for the task, attempts to map AGB without satellite imagery are insufficient. Moreover, the direct remote sensing approach provided more coherent maps of AGB relative to traditional approaches. We demonstrate this with a case study focused on continental Africa and discuss the work in the context of reducing uncertainty for carbon monitoring and markets
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Reflecting on ICN2: Was it a game changer?
At the Second International Conference on Nutrition (ICN2), November 2014, 170 member states endorsed the Rome Declaration on Nutrition and a Framework for Action. The Rome Declaration committed to ending malnutrition in all its forms while the Framework for Action offered 60 voluntary actions to help achieve this. These documents and ICN2 itself had the potential to be a major step forward for public health nutrition, addressing issues associated with today's complex food system. This article reviews ICN2, its process, outputs and some of the gaps and weaknesses of the documents. ICN2's legacy can be interpreted in two ways-a missed opportunity or one of broad aspirations which have yet to translate into meaningful action. The paper considers whether ICN2 could have adopted a more ecological approach to diet and nutrition, linking health and sustainability. While this fits the evidence, it would require a strong commitment to coherence and food system change, almost certainly a firm stance on some food corporate power, and resolve to champion health at the heart of economic policy. This ambitious agenda would require specific multi-actor and multi-level action, together with metrics and mechanisms for accountability. Coherent government policies and actions to tackle all manifestations of inappropriate diet, and to reframe the economic forces which shape such diets are urgently required. To achieve this, the public health movement needs to work closely with civil society, yet ICN2 showed that there is some reluctance to energise that combination. As a result, ICN2 must be judged a missed opportunity, despite having useful aspirations
Challenges towards renewable energy : an exploratory study from the Arabian Gulf region
Considering the importance of energy for social and economic development, access to clean, affordable and reliable energy has been adopted as one of the United Nations sustainable development goals that all countries aim to achieve by 2030. However, much of the world's energy is still produced from fossil fuels and thus the progress towards clean and renewable energy is slow. This paper explores the key challenges towards renewable energy in Gulf Cooperation Council countries blessed with plenty of oil and gas reserves. The key challenges identified through literature review were ranked using a quantitative approach through the data collected from a selective sample across the six countries. These challenges in order of importance were found to be policies and regulations, manpower experience and competencies, renewable energy education, public awareness, costs and incentives for renewable energy and government commitment. The findings could be helpful to decision makers and government organisations in the region to develop strategies to overcome these identified challenges
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