847 research outputs found

    The Extension of the RAINS Model to Greenhouse Gases

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    Many of the traditional air pollutants and greenhouse gases have common sources, offering a cost-effective potential for simultaneous improvements for both traditional air pollution problems as well as climate change. A methodology has been developed to extend the RAINS integrated assessment model to explore synergies and trade-offs between the control of greenhouse gases and air pollution. With this extension, the RAINS model allows now the assessment of emission control costs for the six greenhouse gases covered under the Kyoto Protocol (CO2, CH4, N2O and the three F-gases) together with the emissions of air pollutants SO2, NOX, VOC, NH3 AND PM. In the first phase of the study, emissions, costs and control potentials for the six greenhouse gases covered in the Kyoto Protocol have been estimated and implemented in the RAINS model. Emission estimates are based on methodologies and emission factors proposed by the IPCC emission reporting guidelines. The large number of control options for greenhouse gases have been grouped into approximately 150 packages of measures and implemented in the RAINS model for the European countries. These control options span a wide range of cost-effectiveness. There a re certain advanced technical measures with moderate costs, and certain measures exist for which the economic assessment suggests even negative costs, if major side impacts (cost savings) are calculated. Illustrative example calculations clearly demonstrate that conclusions on the cost-effectiveness of emission reduction strategies are crucially depending on the boundaries of the analysis. The net cost of greenhouse gas control strategies are significantly lower if the immediate cost-savings from avoided air pollution control costs are taken into consideration. For a 15 percent reduction of the CO2 emissions from the power sector in the EU, avoided pollution control costs could compensate two third of the CO2 control costs. Depending on the design of the control strategy, net costs of greenhouse gas mitigation could even be negative, which is in stark contrast to conclusions for a CO2 only strategy. However, there are certain greenhouse gas mitigation measures, such as increased use of biomass that could deteriorate the negative impacts of air pollution, while yielding very little economic synergies. A combined approach towards greenhouse gas mitigation and air pollution control would not only reveal economic synergies, but also harness additional environmental benefits. Even in a situation with stringent emission control requirements for air pollution as it is required by the EU legislation, modifications in fuel use geared towards reductions of greenhouse gases could lead as a side impact to significant reductions in the residual emissions of air pollutants. The economic benefits of such "windfall emission reductions" could be substantial. The extended RAINS model framework will offer a tool to systematically investigate such economic and environmental synergies between greenhouse gas mitigation and air pollution control while avoiding negative side impacts

    Chapter 17 - Economics of adaptation

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    This chapter assesses the literature on the economics of climate change adaptation, building on the Fourth Assessment Report (AR4) and the increasing role that economic considerations are playing in adaptation decisionmaking and policy. AR4 provided a limited assessment of the costs and benefits of adaptation, based on narrow and fragmented sectoral and regional literature (Adger et al, 2007). Substantial advances have been made in the economics of climate change adaptation after AR4

    Coordination crosslinking of helical substituted oligoamide nanorods with Cu II

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    Substituted oligoamides are short sequences of unnatural amino acids. Oligoamides made entirely of amp; 946;3 amino acids yield helical monomers that, if N acylated, assemble into nanorod structures via a supramolecular assembly motif. In this work, coordination crosslinking was used to create complex nanomaterials fromoligoamides WKLWEL KE and WELWEL EE the letters denote the analogous amp; 945; amino acids . Upon Cu II addition, atomic force microscopy and small angle neutron scattering revealedmorphologic changes specific to KE but absent in EE. Vibration spectroscopymeasurements revealed that Cu II can coordinate to the amine moieties of the side chains, without direct effect on the backboneamides. While coordination in excess solvent lead to regular nanostructures, fast drying of the sample yielded oligoamide templated crystallization of CuCl2. The metal coordination crosslinking of supramolecular assemblies as reported here is the first realization of a metallosupramolecular framework structur

    Operationalizing Resilience Against Natural Disaster Risk: Opportunities, Barriers, and a Way Forward

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    The risks from floods have been rising globally due to increasing population, urbanization and economic development in hazard prone areas. The number of flood disasters throughout the world nearly doubled in the decade from 2000-2009 compared to the previous decade. There have been more flood disasters in the last four years (2010-2013) than in the whole decade of the 1980's. Evidence indicates that climate change-induced sea level rise, storm surge and more intense flooding will reinforce this trend unless risk management measures are undertaken immediately to well manage future losses and make communities more resilient to flooding. It is widely recognized that there is a mutually reinforcing relationship between disaster risk and development: disasters impact development and development impacts disasters. Evidence shows that repeated disasters undermine long-term socio-economic objectives. This is particularly evident in low income countries where disasters can impede the development process. The extensive time required to recover from damage, loss of capacity with which to rebuild and systemic risk negatively affect livelihoods in these countries, in the extreme case trapping people in poverty. In developed countries, recent floods triggered massive economic losses and undermined long-term competitiveness. The impact of disasters is felt most acutely by households and communities. In both developing and developed countries alike, local level studies strongly indicate that the poor suffer disproportionately due to the lack of financial and social safety nets, and institutional representation. Development can affect disaster risk via three main channels: by (1) increasing the physical assets and people exposed to the risk, (2) increasing the capacity to reduce the risk, respond to the risk and recover from the risk and (3) increasing or decreasing the vulnerability based on specific development strategies chosen. We identify this interaction as a key research gap; taking account of and balancing development opportunities with disaster risk will require a paradigm shift in the way we think about and do both development and disaster risk management

    A typology of loss and damage perspectives

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    Loss and Damage (L&D) has been the subject of contentious debate in international climate policy for several decades. Recently, formal mechanisms on L&D have been established, but arguably through unclear language. This ambiguity is politically important, but researchers and practitioners require clearer understandings of L&D. Here we report on the first in-depth empirical study of actor perspectives, including interviews with 38 key stakeholders in research, practice, and policy. We find points of agreement and also important distinctions in terms of: the relationship between L&D and adaptation, the emphasis on avoiding versus addressing L&D, the relevance of anthropogenic climate change, and the role of justice. A typology of four perspectives is identified, with different implications for research priorities and actions to address L&D. This typology enables improved understanding of existing perspectives and so has potential to facilitate more transparent discussion of the options available to address L&D

    Multisectoral partnerships and risk information

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    Knowing the increasing trends in natural disasters and losses, it is imperative to take action on disaster risks to improve resilience of European societies to natural hazards. The main goal, therefore, of the ENHANCE project is to develop and analyse innovative ways to manage natural hazard risks. The key is to develop new multi-sectoral partnerships (MSPs) that aim at reducing or redistributing risk, and increase resilience of societiesinfo:eu-repo/semantics/publishedVersio
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