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1.
In considering the prospects for sustainable energy, most studies have focused on developments in the urban and industrial areas. However, in Asia where the bulk of the population continues to live in rural areas, it is essential to monitor the changes occurring in the countryside. Therefore, this paper examines the developments taking place in rural energy in Asia in general and focuses specifically on the situation in China. It is observed that a total reorganization of the energy picture is occurring in rural China with regard to both conventional and non-conventional energy, as a result of the huge market for power and fuel created by rapid economic growth. This has led to new distribution networks for electricity (with the Chinese Government following the example of the US Rural Electrification Administration), fossil fuels and renewable energy systems. The growing affluence of the population coupled with rapid industrialization is producing far-reaching changes in the transportation structure as well as in the household energy structure. The situation in China is seen to be comparable to that in other East and Southeast Asian countries, particularly those which combine a rapidly growing industrial sector with a large rural population engaged in agriculture, such as the Republic of Korea, Thailand, and Indonesia.  相似文献   

2.
Energy transition is the process whereby the volume and proportion of commercial energy increases so as to replace traditional fuels as the main energy source. In South and South-East Asia the extent to which this transition has taken place varies within and between countries. In general, in the urban areas, the process is more advanced than in rural areas. It is also more advanced in the larger towns than the smaller ones and more advanced within higher income groups. In rural areas industry is a large consumer of traditional energy and many rural peoples earn their livelihoods as suppliers of traditional energy to industry. For both economic and social reasons the transition process has been slower in rural households than in urban households. This must change as for much of the rural areas of South and South-East Asia, increasing population and increasing energy demand are creating pressures on the biomass which cannot be sustained.  相似文献   

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More than one billion South Asians are affected by water scarcity. Pressure on water resources is likely to grow as a result of population growth, urban expansion, and climate change. This paper assesses the impacts of these effects on the historical hydrological baseline, with particular focus on irrigation. A geospatial water balance model was developed for this purpose based on geo‐referenced information available in scientific public domain databases. Annual water supply and demand for a baseline period 1950–2000 were calculated and projected to 2050 using (1) outputs from 19 Global Circulation Models from the Coupled Model Intercomparison Project Phase 5 for a Representative Concentration Pathway 4.5; (2) population projections to 2050; and (3) historical land‐use patterns at the country level. Improvements in water use efficiency and storage capacity were analyzed using the Modified Water Scarcity Index of the baseline and the projected water balance in 2050 at the watershed scale.  相似文献   

5.
South Asia is one of the most densely populated regions of the world, where despite a slow growth, agriculture remains the backbone of rural economy as it employs one half to over 90 percent of the labor force. Both extensive and intensive policy measures for agriculture development to feed the massive population of the region have resulted in land degradation and desertification, water scarcity, pollution from agrochemicals, and loss of agricultural biodiversity. The social and ethical aspects portray even a grimmer picture of the region with growing poverty mainly, amongst small farmers, food scarcity, and overall poor quality of life. This article reviews the historical perspective of agriculture development in the region and gives a panoramic view of the policy initiatives and their environmental as well as social and ethical spin-offs. The aim is to explore the environmental and ethical dimensions of the agricultural development in South Asia and recommend a holistic approach in formulating plans and programs to combat environmental degradation, hunger, and poverty resulting from unsustainable agricultural practices.  相似文献   

6.
Mountain watersheds, comprising a substantial proportion of national territories of countries in mainland South and Southeast Asia, are biophysical and socioeconomic entities, regulating the hydrological cycle, sequestrating carbon dioxide, and providing natural resources for the benefit of people living in and outside the watersheds. A review of the literature reveals that watersheds are undergoing degradation at varying rates caused by a myriad of factors ranging from national policies to farmers' socioeconomic conditions. Many agencies—governmental and private—have tried to address the problem in selected watersheds. Against the backdrop of the many causes of degradation, this study examines the evolving approaches to watershed management and development. Until the early 1990s, watershed management planning and implementation followed a highly centralized approach focused on heavily subsidized structural measures of soil conservation, planned and implemented without any consultation with the mainstream development agencies and local people. Watershed management was either the sole responsibility of specially created line agencies or a project authority established by external donors. As a consequence, the initiatives could not be continued or contribute to effective conservation of watersheds. Cognizant of this, emphasis has been laid on integrated, participatory approaches since the early 1990s. Based on an evaluation of experiences in mainland South and Southeast Asia, this study finds not much change in the way that management plans are being prepared and executed. The emergence of a multitude of independent watershed management agencies, with their own organizational structures and objectives and planning and implementation systems has resulted in watershed management endeavors that have been in complete disarray. Consistent with the principle of sustainable development, a real integrated, participatory approach requires area-specific conservation programs that are well incorporated into integrated socioeconomic development plans prepared and implemented by local line agencies in cooperation with nongovernment organizations (NGOs) and concerned people.  相似文献   

7.
This study estimated a series of indicators to assess the energy security of supply and global and local environmental impacts under different mitigation scenarios through 2050 in Brazil, designed with the integrated optimization energy system model MESSAGE‐BRAZIL. The assessment of interactions between environmental impacts and energy security dimensions was complemented through the application of life cycle assessment (LCA) methodology. Overall results imply energy security establishes more synergies than trade‐offs in increasingly stringent mitigation scenarios, especially patent within the sustainability dimension, which increases energy security and provides additional benefits regarding climate change mitigation and air pollution emissions. It is still necessary to extend analysis to other energy sectors in addition to the power supply sector and to promote a better understanding of repercussions of energy scenario expansion in energy security.  相似文献   

8.
While the cybersecurity field has focused primarily on software and network security, threats and vulnerabilities of hardware device supply chains are growing concerns. Of particular importance and interest in this vein is the way in which semiconductors and other electronic devices are increasingly deployed to support energy distribution, storage, and control at a variety of scales. Future smart grid supply chains must be secured to prevent cyber attacks from affecting energy infrastructure, and the societal and economic functions on which they depend. This perspective paper calls for a multiscale approach to address modeling and decision-making for energy system hardware supply chains. A multiscale approach, as discussed in this paper, can facilitate resilience of supply chains across the life cycles of these systems, through low- and high-tech techniques to monitor and act on the supply chain. This can incorporate both qualitative and quantitative factors to suit the variety of stakeholders, geographic scales, organizational levels, and planning and operational time horizons.  相似文献   

9.
Myanmar's water‐related sectors are subject to intensive changes, as the country's abundant land and water resources provide substantial scope for development. Recent steps towards economic reform in Myanmar have led to a surge of foreign investment directed towards intensified natural resource extraction. Both the agricultural and the energy sector are increasingly affected by foreign investments that will impact the status of water, energy and food security in the country. With these on‐going developments, Myanmar's future is largely dependent on how its natural resources are managed and how the benefits from the resource extraction are shared. With various institutional changes and new actors welcomed to the sectors, existing livelihoods and ecosystems dependent on the land and water resources are to face increasing competition for the shared resources, while lacking secured access to them. There are increasing concerns that this sectoral development is occurring at the expense of environmental and social sustainability. As one way to tackle these challenges, the water‐energy‐food nexus approach could help in finding synergies and co‐benefits across sectors by addressing the imbalances along the nexus and externalities derived from the on‐going intensification.  相似文献   

10.
Access to affordable and efficient energy is a basic human right and an imperative for human development. The energy policies usually ponder technical, economic, environmental, and social aspects for successful procurement of energy and endowment of energy resources. The objectives of this paper are to analyze energy policies in Pakistan and assess their relationship with environmental security and development. An empirical and multi-criteria decision analysis was used to unfold the strong interactions of energy security with development and environment. The energy policies in Pakistan are more equipped with economic and technical aspects, fairly framed with social aspects and poorly pampered with environmental facets. The dearth of environmental aspects will not only results in environmental degradation but also lag the development and achievement of Sustainable Development Goals.  相似文献   

11.
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The past few years have seen a phenomenal rise in the production and consumption of biofuels and biodiesel at the global level. This development is of special significance to Africa, where about 550 million people (75% of the total population in Sub‐Saharan Africa) depend on traditional biomass (wood, charcoal, cow dung, etc.) and lack access to electricity or any kind of modern energy service. Derived from plants and agricultural crops, biofuels and biodiesel represent modern forms of bioenergy and more efficient use of biomass energy. Beyond efficiency, modern bioenergy offers tremendous opportunities to meet growing household energy demands, increase income, reduce poverty, and mitigate environmental degradation. In the African setting, energy and livelihoods security are indeed inseparable. This paper argues economic, social, and environmental benefits of modern bioenergy can be realized through a strategy that centres on smallholder production and processing schemes and pursuit of a livelihood approach to energy development. Such a scheme opens up new domestic markets, generates new cash incomes, improves social wellbeing, enhances new technology adoption, and lays the ground for rural economic transformation and sustainable land use. The paper concludes by underlining the vital importance of considering sound property rights and strategic planning of sustainable development as tools for sustainable energy and livelihoods security.  相似文献   

13.
In the wake of the Fukushima nuclear accident, alternative energy paths have been discussed for Japan, but except for a few studies the assumption is usually made that Japan is too densely populated to be suited for a near-100% sustainable, indigenous energy provision. The studies emphasizing renewable energy have proposed the use of photovoltaic power as the main source of electricity supply, in combination with diurnal battery storage and supplemented by other renewable sources such as wind, hydro, and geothermal power. Here, an alternative approach is explored, with wind and derived hydrogen production as the main energy source, but still using solar energy, biofuels, and hydropower in a resilient combination allowing full satisfaction of demands in all sectors of the economy, i.e., for dedicated electricity, transportation energy as well as heat for processes and comfort. Furthermore, the possible advantage of establishing a regional energy system with energy interchange and coordinated management of the mix of renewable energy resources across a wider region is discussed. As the closest neighbor, the energy system of South Korea is considered, first regarding the possibility of a similar full renewable energy reliance, and then for possible synergetic effects of connecting the Korean and the Japanese energy systems, in order to be able to better cope with the intermittency of renewable energy source flows.  相似文献   

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15.
Acid rain in Asia   总被引:3,自引:0,他引:3  
Acid rain has been an issue of great concern in North America and Europe during the past several decades. However, due to the passage of a number of recent regulations, most notably the Clean Air Act in the United States in 1990, there is an emerging perception that the problem in these Western nations is nearing solution. The situation in the developing world, particularly in Asia, is much bleaker. Given the policies of many Asian nations to achieve levels of development comparable with the industrialized world—which necessitate a significant expansion of energy consumption (most derived from indigenous coal reserves)—the potential for the formation of, and damage from, acid deposition in these developing countries is very high. This article delineates and assesses the emissions patterns, meteorology, physical geology, and biological and cultural resources present in various Asian nations. Based on this analysis and the risk factors to acidification, it is concluded that a number of areas in Asia are currently vulnerable to acid rain. These regions include Japan, North and South Korea, southern China, and the mountainous portions of Southeast Asia and southwestern India. Furthermore, with accelerated development (and its attendant increase in energy use and production of emissions of acid deposition precursors) in many nations of Asia, it is likely that other regions will also be affected by acidification in the near future. Based on the results of this overview, it is clear that acid deposition has significant potential to impact the Asian region. However, empirical evidence is urgently needed to confirm this and to provide early warning of increases in the magnitude and spread of acid deposition and its effects throughout this part of the world.  相似文献   

16.
“Eco-efficiency” is a term that does not yet appear in dictionaries but has already gained considerable force in shaping the environmental policies and practices of leading corporations. The Business Council on Sustainable Development (BCSD) sounded a trumpet call with their 1992 manifesto, “Changing Course.” Due to the credibility of the companies that constitute BCSD's membership—including Dow Chemical, 3M, Northern Telecom, Ciba-Geigy, Volkswagen, Nissan, Mitsubishi, and many others—their message has had a substantial influence on the strategic thinking of company executives around the world, BCSD's concept of eco-efficiency suggests an important link between resource efficiency (which leads to productivity and profitability) and environmental responsibility. Eco-efficiency makes business sense. By eliminating waste and using resources wisely, eco-efficient companies reduce costs and become more competitive. As environmental performance standards become commonplace, eco-efficient companies will be at an advantage for penetrating new markets and increasing their share of existing markets. This article describes the business practices companies are adopting to increase their eco-efficiency and improve their competitive advantage. “Corporations that achieve ever more efficiency while preventing pollution through good housekeeping, materials substitution, cleaner technologies, and cleaner products and that strive for more efficient use and recovery of resources can be called eco-efficient.” Declaration of the Business Council on Sustainable Development, 1992.  相似文献   

17.
ABSTRACT

“Waste-to-energy” (WTE) technologies have been presented as one of the avenues to improve the management of solid waste whilst promoting clean and healthy urban environments through the recovery of waste and generation of energy. Research suggests that with the right investment in technologies and institutional changes, waste can potentially become a resource that can contribute to the socio-economic development of cities. It is in this context that this paper presents a review of the literature on WTE technologies and their implications on sustainable waste management in urban areas. The paper particularly contributes to our understanding of WTE technologies and its potential on Municipal Solid Waste Management (MSWM) in Johannesburg, South Africa. It is estimated that the city of Johannesburg’s landfills airspace will be completely depleted by year 2023. This projection becomes a motivation for the identification of suitable WTE alternative avenues to manage waste in the city. The paper argues that WTE technologies can contribute significantly to sustainable waste management, economic growth, ecological and environmental well-being.  相似文献   

18.
Differences between inland and coastal aquacultural production systems in Asia are discussed in terms of market orientation, resource allocation and property rights, and scale of operations. The production of shrimp grown in coastal brackish water ponds has featured prominently in aquacultural development programmes in Asia. Emphasis placed on capital-intensive shrimp production for export, however, has distracted attention from the potential of inland freshwater aquaculture to generate employment opportunities for rural people and food production for domestic consumers. The paper concludes with a discussion of an alternative policy direction for promoting aquacultural development on a socially sound basis, recognizing the need to balance equity and human nutrition with profitability and foreign exchange earnings.  相似文献   

19.
Generally speaking, today's TQEM initiatives do not improve a firm's activities beyond the shipping dock and onto consumer and postconsumer use and reuse. Although internal TQEM efforts do improve environmental impacts of a firm's operations, most firms remain focused on the traditional bottom-line objective of increasing throughput. For these reasons, most firms implementing TQEM miss the many opportunities to improve environmental performance (including cost and quality) through asset recovery, resource sharing, and reuse. However, by taking the advantages of teamwork beyond corporate boundaries, firms can close the loop on environmental improvements. Inter-firm teaming for environmental advantage, which we define as TQEM alliancing, initiates a cyclical approach to environmental performance improvement. It does so by forging strategic relationships among firms that can leverage each other's environmental weaknesses. TQEM allying is a round-robin game plan. In this article, the authors show how it allows firms to take their environmental improvement initiatives beyond regulatory compliance (and into proactivity), beyond pollution control (to total pollution avoidance), and beyond profitability (for a quantitative as well as qualitative bottom line), because firms will be integrating external as well as internal functions across different business domains.  相似文献   

20.
The last decade has seen considerable interest in the concept of social capital and there have been a number of publications focused around the concept. A wide range of claims have been made for the analytic potential of social capital leading some to question the concept's continued value. We think that the concept still has considerable value if used in a careful and rigorous way. We further think that the concept has particular value when considering policy for sustainable development. However, just as sustainable development is a multi-faceted concept, this application requires a multi-faceted reading of social capital. Having concluded that a clearer typology of social capital is needed, we propose a threefold typology, adding the new category of 'bracing' social capital to the more commonly used distinction between 'bonding' and 'bridging' social capital. We also address the issues of what social capital can do and how it actually works, specifically in the context of policy for sustainable development.  相似文献   

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