9,327 research outputs found

    The Jatropha Biofuels Sector in Tanzania 2005-9: Evolution Towards Sustainability?

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    Biofuel production has recently attracted a great deal of attention. Some anticipate substantial social and environmental benefits, while at the same time expecting sound profitability for investors. Others are more doubtful, envisaging large trade-offs between the pursuit of social, environmental and economic objectives, particularly in poor countries in the tropics. The paper explores these issues in Tanzania, which is a forerunner in Africa in the cultivation of a bio-oil shrub called Jatropha curcas L. We trace how isolated Jatropha biofuel experiments developed since their inception in early 2005 towards a fully fledged sectoral production and innovation system; and investigate to what extent that system has been capable of developing ànd maintaining sustainable practices and producing sustainable outcomes. The application of evolutionary economic theory allows us to view the development processes in the sector as a result of evolutionary variation and selection on the one hand, and revolutionary contestation between different coalitions of stakeholders on the other. Both these processes constitute significant engines of change in the sector. While variation and selection is driven predominantly by localised learning, the conflict-driven dynamics are highly globalised. The sector is found to have moved some way towards a full sectoral innovation and production system, but it is impossible to predict whether a viable sector with a strong “triple bottom line” orientation will ultimate emerge, since many issues surrounding the social, environmental and financial sustainability still remain unresolved.biofuels, evolutionary theory, innovation systems, sustainability, stakeholder conflict, learning, Tanzania.

    Environmentally sustainable practices at UK airports

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    In response to growing concerns about rising energy bills, long-term energy security and the environmental impacts of greenhouse gas emissions, airport operators worldwide are increasingly implementing new sustainable practices to help reduce costs, increase efficiency and reduce their environmental impacts. These initiatives include the installation of on-site wind turbines, biomass plants, and ‘smart' heating and lighting systems as well as other ‘green' initiatives including rainwater harvesting initiatives, improved recycling facilities and financial incentives to encourage staff to travel to work by modes other than the private car. Drawing on specific examples, this paper examines the ways in which UK airports have responded to the challenge of reducing the environmental impacts of operations for which they are directly responsible by implementing green and sustainable energy and working practices. The paper concludes by discussing the importance of sustainable airport practices in light of future growth in key emerging aviation markets

    Energy and emissions : local and global effects of the rise of China and India

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    Part 1 of the paper reviews recent trends in fossil fuel use and associated externalities. It also argues that the recent run-up in international oil prices reflects growing concerns about supply constraints associated with declining spare capacity in OPEC, refining bottlenecks, and geopolitical uncertainties rather than growing incremental use of oil by China and India. Part 2 compares two business as usual scenarios with a set of alternate scenarios based on policy interventions on the demand for or supply of energy and different assumptions about rigidities in domestic and international energy markets. The results suggest that energy externalities are likely to worsen significantly if there is no shift in China's and India's energy strategies. High energy demand from China and India could constrain some developing countries'growth through higher prices on international energy markets, but for others the"growth retarding"effects of higher energy prices are partially or fully offset by the"growth stimulating"effects of the larger markets in China and India. Given that there are many inefficiencies in the energy system in both China and India, there is an opportunity to reduce energy growth without adversely affecting GDPgrowth. The cost of a decarbonizing energy strategy will be higher for China and India than a fossil fuel-based strategy, but the net present value of delaying the shift will be higher than acting now. The less fossil fuel dependent alternative strategies provide additional dividends in terms of energy security.Energy Production and Transportation,Environment and Energy Efficiency,Energy and Environment,Energy Demand,Transport Economics Policy&Planning

    Productivity measurement and growth in Nigeria: challenges and prospects

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    Productivity (growth) measurements (describing the assessment of an economy’s rate of change in the ratio of a volume measure of output to a volume measure of input use) and related analysis are regular undertakings by staff of economic development of most nations and development institutions such as the OECD. Although they strive to accomplish objectives related to studying efficiency or the achievement of maximum output physically achievable under the use of current technology and given inputs, accounting for the contribution of real costs savings; introduction of benchmarks for production processes and to highlight living standards obtaining at points in time, its emphasis has been at the expense of examination of issues related to society (institutions), history, innovation and productivity change, which are concerned with promoting growth beyond mere productivity accounting. This paper has attempted to address all these issues as they pertain to Nigeria’s rather stagnant or declining economy. This slight modification was prompted by changes from philosophers concerned with the wider area of productivity measurement and change. The literature agrees that productivity measurement (growth accounting) only “identified the significance of different proximate sources of growth” but fails to employ institutional, historical case studies to investigate the underlying causes of the growth, innovation and productivity change. Details of deficiencies related to the foregoing issues are examined and policy recommendations drafted and presented to assist practitioners, policy and decision makers and other stakeholders.productivity, change, improvement, growth, labour, corruption.

    Eighth National Garrett Morgan Symposium on Sustainable Transportation, Report MTI 08-03

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    On April 1, 2008, the Mineta Transportation Institute at San José State University hosted a videoconference that brought together experts in surface transportation and students from middle and high schools across the nation to discuss the importance of sustainable transportation. The goal was to introduce students to future career opportunities in transportation and to inspire them to take the high school and college courses that will prepare them for professional careers. Students from California, Maryland and Virginia participated in the 2008 symposium, during which they heard opening remarks from Vice Admiral Thomas J. Barrett, Deputy Secretary of the U.S. Department of Transportation. Five teams of students presented their ideas on sustainable transportation alternatives for the future. These included a magnetic hover bus that can traverse both land and water, a plug-in electric-biodiesel-solar hybrid car, applications of the Stirling engine, a solar-hydropower bus, and an electric car with back-up power from solar panels and an internal windmill. The formal presentations were followed by a moderated question-and-answer session in which student teams questioned each other about their projects and sought the advice of experts about preparation for transportation careers and the critical issues they will face in the future. This publication is an edited summary of the April 2008 event, named in honor of Garrett A. Morgan, a black American inventor honored by Congress for his contributions to transportation and public safety

    Monitor Sustainable Municipalities Report 2019 Key topic Circular Economy. Bertelsmann Stiftung Study 4 November 2019

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    At first sight, the concept for a recycling economy appears to be just the latest trend in the field of urban development, but in fact conversion to circular value creation also contains numerous oppor-tunities for the creation of long-term sustainable economic, social and environmental benefits for local communities. We have therefore chosen to look at this topic in this, our fourth, Monitor Report. Recycling Economy, Circular Value Creation and Cradle To Cradle are three concepts which – alt-hough each has a different main focus – basically all describe the same paradigm shift: away from a classic linear economy (“Take, Make, Use, Dispose”) towards a model based on restoration and regeneration. The recycling economy principle is actually anchored in the United Nations’ 17 Sustainable Devel-opment Goals, or SDGs. Goal 12 calls for sustainable consumption and sustainable production patterns. The recycling economy is also associated with a number of other sustainability goals, as it makes a significant contribution to their achievement. We are convinced that it is worth considering the applicability of the concept to local communities in Germany. What does transferring the recycling economy principle to local communities entail? How can towns be converted into “Recycling Cities”? Where are the obstacles and what potential is there? This Monitor Report is a first – it is the first bilingual version. With the kind permission of the Collab-orating Centre for Sustainable Consumption and Production (CSCP) in Wuppertal, we have issued their “Circular Economy Guidebook for Cities” in the original English with a German translation. We hope that, by looking at the bigger picture, we will also generate the impulse to consider how the topic can be adopted in (European) towns and cities, and what the resulting benefits could be. We are fully aware that a one-to-one transfer will not work. “One size fits all” does not apply to local communities. Although something that makes sense in Amsterdam, Copenhagen or Oslo may not necessarily work in towns, districts and local communities in Germany, it is definitely worth looking at how things are done in other countries. I would sincerely like to thank everyone who contributed to the creation of this Report, and especially the CSCP for its trust and invaluable cooperation. We hope you enjoy reading the Report, and look forward as always to your feedback and suggestions

    Environmental, Health and Economic Conditions during the COVID-19 Pandemic

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    The spread of coronavirus disease 2019 (COVID-19), which is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has evolved as a global pandemic and the disease has affected nearly every country and region. This pandemic has posed further threats to people due to the emergence of the number of novel SARS-CoV-2 strains with unknown original hosts. Since the start of the pandemic, COVID-19 has overwhelmed health systems worldwide, from crippling health resources to causing paradigms shifts in health care delivery. The various strategies taken to control viral transmission including testing process, quarantine and isolation have had dire psychological and financial implications on individuals and institutions. Furthermore, many countries have implemented lockdowns and other restrictions to curb the virus’s spread resulted in disrupted formal education, unplanned fiscal costs on emergency reliefs, and decreased productivity. This Special Issue provides an avenue for authors from various disciplines to better understand the risk factors associated with the spread and severity of COVID-19 infections. It also provides information about the influence of COVID-19 and its countermeasures on local economies, the environment, and mental health. This Special Issue contains 11 research articles and one review

    Renewable Energy

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    In lieu of an abstract, below is the first paragraph of the paper. As the price of one barrel of oil increased to over 140 dollars in the past year alone, just about any green technology company looks wonderful by today\u27s standards. Although the price of oil has declined in the past few months, the need for conversion to renewable energy sources is still very prominent (Capell). The global market for green technology is massive, readily available, and renewable energy resources are better for the environment. Green energy can produce the necessary means to sustain the energy needs of the United States, developing countries and industrialized nations. In our current situation, with fossil fuels as our main source of energy, the environment may collapse

    Policy Meltdown: How Climate Change Is Driving Excessive Nuclear Energy Investment

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    The United States is currently experiencing what some have labeled a nuclear energy renaissance. This so-called renaissance responds in part to growing concerns about global warming and the need to reduce the greenhouse gas emissions associated with electricity production. A growing number of policymakers and scholars view nuclear energy development as one of the most promising means of slowing climate change because nuclear energy does not produce greenhouse gas emissions. They are increasingly advocating that nuclear energy receive policy treatment at least as favorable as that afforded to renewable energy strategies such as wind and solar energy. Some state governments are also citing global warming as a primary reason for investing millions to extend the lives of aging nuclear power plants and to keep these plants operational and cost-competitive in an era of low-cost natural gas. Unfortunately, in their zeal to save nuclear energy plants and promote additional nuclear energy development as a means of combatting global warming, policymakers are underestimating the true costs associated with nuclear power in ways that could adversely impact humankind for centuries to come. This Article applies familiar principles of microeconomics and behavioral economics to analyze the nation\u27s recent flirtation with nuclear energy as a primary response to global warming. Among other things, policymakers and the public seem to increasingly allow excessive optimism, myopia, path dependence problems, or intergenerational externality problems resulting in their under-consideration of the full social costs of nuclear energy. This Article ultimately argues that, when one considers all the societal costs of nuclear energy, renewable energy strategies such as wind and solar development are afar more cost-justifiable means of responding to global warming
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