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  • 标题:Crisis in the south - water crisisin developing countries
  • 作者:Asit K. Biswas
  • 期刊名称:UNESCO Courier
  • 电子版ISSN:1993-8616
  • 出版年度:1993
  • 卷号:May 1993
  • 出版社:UNESCO

Crisis in the south - water crisisin developing countries

Asit K. Biswas

As a result of poverty, population growth, urbanization and pollution, water management is set to become the most crucial natural resource issue facing the developing world

THE days when water could be considered a cheap and plentiful resource are virtually over, and many parts of the developing world are already facing a water crisis which is likely to intensify significantly during the coming decades. This crisis in the South is the direct result of four interrelated phenomena.

First, since nearly all the easily available sources of water have now been developed or are in the process of development, the unit costs of future projects are bound to rise. Meanwhile, many developing countries are saddled with very high levels of debt, and the amount of new investment available, both internally and externally, is limited. In addition, competition for available funds is intense.

Second, current estimates indicate that by the year 2050 world population is likely to double to 10.64 billion, of which developing countries will contribute nearly 87 per cent, or 9.29 billion. While there is no one-to-one relationship between population and water requirements, it is clear that with a substantial increase in population, water requirements in the South are bound to increase as well. Furthermore, past experience indicates that as standards of living rise so do per capita water requirements, and so if current poverty-alleviation programmes succeed, these requirements will increase further.

Third, as the impact of human activities increases, water is being contaminated by more and more waste products such as untreated or partially-treated sewage, agricultural chemicals and industrial effluents. Already many sources of water near urban centres of developing countries have been seriously affected.

The fourth major factor relates to the increasing delays in implementing new water projects that are likely in the coming decades owing to higher costs and lack of funds. Social and environmental factors will also significantly delay project initiation time, certainly more than in recent decades.

In the South there will be increasing pressure to make water management more efficient than ever before. However, the amount of time available for these improvements is likely to be short--certainly no more than a decade, or at most two. While technological problems may be comparatively easy to solve, political, institutional and social constraints are likely to be a very different matter. They may, in fact, pose the most difficult challenge for water management in the South in the twenty-first century.

Here are some priority areas for action:

* Raising the global profile of freshwater issues. Efficient water development and management will require significantly more capital than the countries of the South have access to at present. Until water is placed squarely on the international and national agenda, the necessary funds will not be forthcoming.

* The conservation and efficient use of water have only received lip-service so far. Since agriculture is by far the largest user of water, efficient irrigation management will undoubtedly be a major conservation option in the future. Although some progress has been made during the past decade, the overall level of efficiency is still far too low.

Considerable scope also exists for practising water conservation in the domestic and industrial sectors. In many towns and cities in developing countries, more than half the treated water is lost because of leakage. Design changes can significantly reduce water requirements in the industrial sector.

* Institutional strengthening and co-ordination. Most water management institutions in the South need considerable strengthening. In addition, nearly all countries must substantially improve the level of collaboration between institutions--at present water-related policies are developed in a fragmented fashion. At the international level, much better coordination is necessary between the multilateral and bilateral assistance organizations.

* Management of international water sources. The only major sources of water that remain to be developed are international in character, that is they are shared by two or more countries. Unless proper treaties are negotiated between co-basin countries, international water bodies are likely to be a fertile area of conflict in the future.

Very few objective in-depth analyses of international water bodies in developing countries are currently available. To a great extent international organizations have deliberately steered clear of the issue, mainly because it has been considered to be politically sensitive.

* Environmental considerations. The environmental aspects of water resource development need more attention.

* Research and training. Countries of the South have to forge better links with one another on research and training in water management. Currently, there is very little South-South knowledge and technology transfer. For example, even though countries like Egypt and India have many common water problems, and the various institutional, economic and technical constraints are somewhat similar, Egyptian water professionals have very little knowledge of Indian practices and vice versa. Considerably more needs urgently to be done in this area.

Equally, international organizations need to develop clear and cost-effective training strategies for water professionals of the South. Is it preferable, for example, to bring them to France or the United States for a two-week training programme, when the same amount of money could provide more than a year's training at a good Indian institution? Fundamental questions of this type have yet to be asked, let alone answered properly.

ASIT K. BISWAS, Indian-born Canadian specialist on water resources development and environmental management, is the president of the International Society for Ecological Modelling, based in Copenhagen (Denmark). A former scientific advisor to several United Nations agencies and many governments, he is the author of a prolific body of work which has been translated into 13 languages.

COPYRIGHT 1993 UNESCO
COPYRIGHT 2004 Gale Group

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