Water

Fair distribution of water

There are nearly one billion people who do not have access to safe drinking water. Everyday, millions of women and children have to walk long, and often dangerous, distances in order to collect water and carry it home. As is the case for food and land, access to clean drinking water and water for agricultural usage is unequal. Water rights are often unfairly distributed, especially in Africa and Latin America. The IAASTD does not rule out that the water-scarce regions of Africa and Central Asia will have to import food products from regions with abundant water resources in the future. Today, this export of "virtual water" already takes place on a large scale, although in the opposite direction. Water embedded in cash crops is imported from developing countries, flowing mainly into the meat production systems of industrialised countries.

Verschmutzt, vergiftet, überdüngt

Grünes und blaues Wasser

Schlimmer noch als ihre Übernutzung schlagen Verschmutzung und Vergiftung ganzer Wasserläufe zu Buche. Wasser transportiert viele Stoffe: fruchtbaren Boden, der verloren geht, Nährstoffe, die in hohen Konzentrationen die Wasserläufe überdüngen und ihnen dabei den Sauerstoff entziehen, Pestizide, Salze, Schwermetalle, Abwasser aus Haushalten und eine schwer überschaubare Vielfalt von chemischen Substanzen aus Fabriken. Während sich in Europa viele Flüsse und Seen von direkter Vergiftung durch industrielle Einleitungen langsam erholen, nimmt das Problem in dicht besiedelten Regionen Asiens und anderen Schwellenländern massiv zu. Die Nutzung des Wassers wird stromabwärts immer teurer und riskanter oder gar unmöglich. Gifte im Grundwasser können diesen Schatz für Generationen unbrauchbar machen. Die Landwirtschaft belastet Gewässer mit Pestiziden und v.a. mit enormen Stickstoffmengen. Die Zahl und Größe sogenannter „Todeszonen“ in den Mündungsgebieten großer Ströme, in denen marines Leben wegen Überdüngung erstickt, weiten sich aus."Runoff and seepage of synthetic fertilizers and concentrated sources of livestock waste damage aquifers, rivers, lakes, and even oceans - with costly effects on drinking water quality, fish habitat, safety of aquatic food, and recreational amenities.“ (Global, p.10)

Water for cash crops: the death of the Aral Sea

Since the 1960s, the Aral Sea in Central Asia, located in what today is Kazakhstan and Uzbekistan, has been deprived of more water than is necessary to maintain its water levels. The fresh water that used to supply the sea is used by neighbouring countries to produce export crops, mainly cotton.
Large amounts of water from the two main rivers that feed the Aral Sea have been diverted to the desert so as to irrigate about 2.5 million hectares of land. In the 1960s, the Aral Sea received around 50 cubic kilometres of fresh water per year. By the early 1980s it received none.
By the 1990s, the surface area of the Aral Sea had shrunk by half and its volume had dropped by 75 percent. Its salinity had increased fourfold, preventing the survival of most of the sea's fish and wildlife. The desiccation of the Aral Sea has led to the loss of fisheries, contamination of water and soil, and the presence of dangerous levels of polluted airborne sediments (salt- and pesticide-laced particles). In addition, the regional groundwater table has fallen and many oases near the shore of the Aral Sea have been destroyed. By 1990, more than 95% of the marshes and wetlands in the region had given way to sand deserts.
The inhabitants of the adjacent communities face severe health problems. Drinking water is polluted. Chronic bronchitis, kidney and liver diseases have increased by 3000%. The infant mortality rate is one of the world’s highest (CWANA Report; p. 10).

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Videos: Water

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Graphics

  • UNEP Access to safe waterUNEP Access to safe water
  • UNEP Irrigated cropland by regionUNEP Irrigated cropland by region
  • UNEP Water for food production 1960-2050UNEP Water for food production 1960-2050
  • UNEP Water scarcity indexUNEP Water scarcity index
  • Climate change and water scarcityClimate change and water scarcity
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Unterstützer von www.weltagrarbericht.de biovision Bread for all Demeter Greenpeace Forum Umwelt und Entwicklung Eine Welt Stiftung Die Grünen, Europäische Freie Allianz Evangelischer Entwicklungsdienst NABU - Naturschutzbund Deutschland e.V. Misereor Deutsche Gesellschaft für internationale Zusammenarbeit Zukunftsstiftung Landwirtschaft in der GLS Treuhand Zukunftsstiftung Landwirtschaft in der GLS Treuhand
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