首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 0 毫秒
1.
The author discusses the concept of a national materials policy for the UK and focuses on the implications for such a policy to be derived from analysis of the UK balance of payments. The position of materials in the overall trade balance, the role of individual commodities, the form of metal imports and the sources of supplies are all examined statistically to consider what are the major trends in materials trade.  相似文献   

2.
The author describes a futures study which looked at the long term supply of raw materials and resources for Sweden. The study involves the construction of a number of possible scenarios of Swedish and world development and an examination of their implications for resource supply. The conclusion is that there are unlikely to be any physical limits to growth over the next 25 years or so but that there may well be political obstacles. In any event, ideas of development are largely conditioned by historical and social circumstances and new paradigms may well produce new models of development.  相似文献   

3.
The availability and security of raw materials supply have taken on a new political dimension within the last few years. These issues influence the economic and political rank of nations, affecting their independence, their standards of living and the competitive position of their industries. The importance of raw materials supply will continue to grow, for both the developed industrial and the developing countries. The European Community depends on external sources for 50–100% of most of its raw materials. Although the degree of dependence varies considerably from commodity to commodity, sources are not diversified enough to guarantee supply. Yet 1700–2000 million tons of waste are generated annually in the Community, containing substances of potential value—including metals, glass, rubber, textiles, oil, plastics—of which 70– 80% are tipped. This represents a loss of materials as far as they could be reused economically. This article argues that efforts should be made to recover and reuse the maximum possible of these resources to reduce the Community's dependence on, and improve its security of, raw materials supplies, and to lower the balance of payments burden.  相似文献   

4.
5.
The literature on waste recycling neglects the potential effects that this process can have at the aggregate level, although there are positive externalities which have not emerged in the microeconomic analysis of this phenomenon.This paper investigates the macroeconomic effects of the waste recycling process, with particular reference to a country, such as Italy, which uses many foreign non-renewable resources. We use the Keynesian multiplier theory as a theoretical framework to evaluate the potential results of an increase in waste recycling on the gross national product, the balance of payments and employment. In such a way the policy maker can better evaluate whether to promote the process considered here rather than discharging the waste in the environment.  相似文献   

6.
The methods of using growth curves in the economic field to forecast consumption and market developments have been based on the ‘black box’ principle in most of the published cases and have therefore failed to produce reliable results in the medium and long term. This paper introduces an engineering approach for forecasting long-term trends pertaining to the use of processed raw materials. The forecasting is performed by means of a newly developed growth model. To prove the usefulness and validity of the model presented, long-term trends have been calculated for various processed raw materials, such as nickel, platinum and steel.  相似文献   

7.
合理利用境外的可用作原料的固体废物,可以弥补我国国内资源的相对不足,但固体废物固有的废物属性仍不可避免地会带来一定的环境负面影响。建立可用作原料的固体废物进口可行性评价体系,对于在合理利用境外废物资源的同时,保护和改善环境具有重要意义。本文论述了我国建立可用作原料的固体废物进口可行性评价体系的理论和原则,并根据影响可用作原料的固体废物进口可行性评价的因素分析,构建了可用作原料的固体废物进口可行性评价指标体系框架。  相似文献   

8.
Volcanic soil can be used to remove metals from wastewaters. Once used, it is disposed in landfills. The utilization of this material in the cement industry as an alternative raw material was evaluated using life cycle assessment (LCA) methodology. This possibility has been studied from an environmental point of view in a Chilean cement facility, representative of the current operation state of art, including both technical and economic analysis. Two scenarios were compared: Scenario 1, which corresponds to the existing cement production process, and Scenario 2, which represents cement production using spent volcanic soil. With the exception of the categories of carcinogens (C) and minerals (M), the comparative results are favourable to Scenario 2, specially regarding to the category of ecotoxicity (E), mainly due to the avoided landfilling emissions of the volcanic soil. When considering the damage assessment, damage to human health (HH), ecosystem quality (EQ) and resources (R) are lower in Scenario 2. In addition, sensitivity analyses were performed to study the influence of particular parameters (i.e., transport of spent volcanic soil, CO2 emissions from the clinkerization process and heavy metals leaching from the spent volcanic soil) on the results of the assessment. The use of alternative raw materials (in this case, spent volcanic soil), which present the advantage to be wastes from other technical systems, appear to allow the development of cement production in a more sustainable way, slightly improving the economy of the process. The spent volcanic soil can be treated with zero cost for the wastewater treatment plant with savings of 0.23€ for each tonne of clinker production. Establishing a sound management way for the spent volcanic soil could foment its possible use as mineral adsorbent in industrial wastewater treatment facilities.  相似文献   

9.
This paper discusses methodologies that have been employed to give insights into business performance in relation to sustainable development, both at a sectoral and corporate level. From consideration of different sectoral sustainable development methodologies, some key issues and good practice related to their derivation are elaborated. These issues are then further illustrated by a detailed comparison between three sustainable development methodologies that have been used in the UK offshore oil and gas industry. The methodologies chiefly differ in terms of how they address the problem of comparing different impacts across potentially non-commensurable dimensions, one proceeding through explicit monetary valuation, another through implicit valuation of different options and another through presentation of an unaggregated framework of indicators. The paper concludes by identifying the different situations in which use of these different methodologies is appropriate.  相似文献   

10.
The targeting of environmental policies holds the key to their effectiveness and value for money. In this paper we look specifically at the targeting of the various agri‐environmental schemes likely to be on offer to UK farmers under a reformed Common Agricultural Policy. The manner in which these schemes are targeted—at groups of farmers or areas of land—and the precision with which target groups or target land is identified will be critical in their success or failure. One approach is to target the farming systems thought most environmentally sensitive. This avoids drawing lines on a map and may allow policy makers to channel money into the hands of economically disadvantaged farmers or those vulnerable to policy change. But there is also a need for a more radical and geographically‐targeted approach if problems like soil erosion and aquifer protection—requiring drastic land use shifts within specified areas—are to be tackled effectively. We assess the scope for using existing datasets to identify land that should be targeted under an American‐style Conservation Reserve Programme in the UK.  相似文献   

11.
This work assessed the methods of erosion on different surfaces in Ilorin City, Nigeria. The data were sourced from direct fieldwork exercises utilising erosion pins and sediment traps. These were analysed using the Z-score additive model. It was observed that erosion problems are better studied on site utilising sediment traps, which were more efficient than the erosion pins.  相似文献   

12.
13.
Supply of some critical raw materials by European industry is becoming more and more difficult. After the case of natural textile fibres, in particular cotton, and timber, over the last few years the problem of rare earths (REs) availability has also risen. The 97% of the global supply of rare earth metals (REMs) is produced by China, that has recently done copious cuts of its exports, apparently in order to protect its environment. This fact has greatly increased the REs prices, causing tension and uncertainty among the world hi-tech markets. Many of these materials, in fact, have very few effective substitutes and low recycling rates too. In addition, their natural reserves of rare earths are concentrated in a small number of countries (China, Brazil, US, Russia, Democratic Republic of Congo). REMs are a group of 17 elements particularly used in many new electronic and advanced components: such as fuel cells, mobile phones, displays, hi-capacity batteries, permanent magnets for wind power generation, green energy devices, etc. Many analysts foresee much more requests in the next decades.  相似文献   

14.
The delivery of many of the most pressing environmental issues will rely on changes in environmental attitudes and behaviour at community level. At a UN Special Session in 1997, the British Government highlighted its initiatives on Local Agenda 21 (LA21) and Going for Green (GFG) as significant advances. This paper adds a new perspective, drawing on the range of experiences of some of the research teams that have been working with local authorities on pilot Sustainable Community Projects (SCPs) in England and Scotland. It sheds light on three substantive themes: the tensions inherent in the implementation of internationally and nationally agreed goals through local action; the ambiguity of local agencies acting as facilitators of community ownership of processes, and the requirements for successful partnership between local authorities and higher education.  相似文献   

15.
Carbon capture and storage (CCS) technology has been endorsed by the IPCC and the UK government as a key mitigation option but remains on the cusp of wide-scale commercial deployment. Here we present a technology roadmap for CCS, depicted in terms of external factors and short- and long-term pathways for its development, moving from a demonstration to commercialisation era. The roadmap was been developed through a two-phase process of stakeholder engagement; the second phase of this, a high level stakeholder workshop, is documented here. This approach has provided a unique overview of the current status, potential and barriers to CCS deployment in the UK. In addition to the roadmap graphics and more detailed review, five consensus conclusions emerging from the workshop are presented. These describe the need for a monetary CO2 value and the financing of carbon capture and storage schemes; the lack of technical barriers to the deployment of demonstration scale CCS plant; the role of demonstration projects in developing a robust regulatory framework; key storage issues; the need for a long-term vision in furthering both the technical and non-technical development of CCS.  相似文献   

16.
Abstract

The delivery of many of the most pressing environmental issues will rely on changes in environmental attitudes and behaviour at community level. At a UN Special Session in 1997, the British Government highlighted its initiatives on Local Agenda 21 (LA21) and Going for Green (GFG) as significant advances. This paper adds a new perspective, drawing on the range of experiences of some of the research teams that have been working with local authorities on pilot Sustainable Community Projects (SCPs) in England and Scotland. It sheds light on three substantive themes: the tensions inherent in the implementation of internationally and nationally agreed goals through local action; the ambiguity of local agencies acting as facilitators of community ownership of processes, and the requirements for successful partnership between local authorities and higher education.  相似文献   

17.
Two disciplines claim to provide justification of action. Ethics gives you moral reasons to act upon, whereas economics exploits the concept of rationality. The paper discusses two theories of interdisciplinarity of ethics and economics in order to clarify the relationship. The traditional view of a hierarchical ordering of ethics and economics is rejected, and it is claimed that there are substantial economic contributions to ethical justification.  相似文献   

18.
Summary The author argues that sound, profitable and sustainable development should be pursued by all sections of the community: that there exist economic benefits to Governments in promoting sound ecological principles in development policies. He suggests that the environmental movement should be talking about development and environmental concerns as complementary issues, and believes that business enterprises should regard the limitation of environmental damage as simply one more facet of good business practice for good business reasons.Sir Arthur G. Norman, KBE, DFC, is the Chairman of The UK Centre for Economic and Environmental Development (CEED) and an interview with him was recently presented inThe Environmentalist 5 (3) 163–6. This paper was given as a closing address to a Conference entitledThe EEC Environmental Assessment Directive: Towards Implementation held at the Royal Society of Arts, London on 30th–31st January 1986. The Conference was organized by the Centre for Environmental Management and Planning, University of Aberdeen, assisted by the Department of the Environment (UK), the Confederation of British Industry, the Royal Town Planning Institute, the Landscape Institute and with the participation of the Commission of the European Communities.  相似文献   

19.
Although climate change risks have been studied for a number of economic sectors, banking has received relatively little attention. The paper proposes a methodology and an associated decision-support tool for quantifying, in monetary terms, the risks for banks from the exposure of their loan recipients and/or applicants to climate change. The framework and tool are applied to a case study based on input from a Greek bank; results indicate that climate change risks for banks are considerable, and thus decision makers need to estimate their magnitude and possibly consider these within the credit management process, and in environmental planning.  相似文献   

20.
Summary A comparison is made of major issues relating to drinking water and river water quality in the UK and the CIS (USSR). Historical and legislative aspects are briefly reviewed. In both countries there is an imbalance between the location of fresh water sources and the distribution of the population. In each country standards are used to define water quality. These standards tend to be more exacting in the CIS. In the UK derogations are used to produce a more relaxed standard. Failure to comply with drinking water standards is common in the CIS (on average 20 percent of samples). In the UK, data are recorded on a different basis, but it appears that deviations from nitrate and pesticide standards are common. In both countries' water supplies, pollution appears to be extensive with few overall signs of significant improvement. This is attributable partly to lack of effective enforcement and weak penalties for transgressors. There is a high level of public concern regarding water quality and health in both the CIS and the UK. As a consequence there are increasing signs in each country of a national determination to implement the legislation more effectively. Needs for further actions are identified.Dr Olga Bridges was born and educated in Russia. Since coming to the UK she has held posts on Soviet Studies in various universities. Dr Bridges' early research was in attitudes to languages and nationality, but more recently it has centred on attitudes to environmental issues. To further her knowledge of scientific aspects of environmental problems, Dr Bridges is currently taking the Advanced Diploma in Environmental Practice at Farnborough College of Technology, UK.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号