Food ShortagesGlobal Warming/Climate ChangeWater Contaminaton & Loss

When The Water Ends: Africa’s Climate Conflicts

Nomadic herdsmen in Kenya and Ethiopia struggle, and fight, over water resources as the climate changes and the land dries out.

Meanwhile, making a bad situation a lot worse, Ethiopia is building what will be the largest hydro-electric dam in Africa, the Gibe III, which will seriously exacerbate problems for these same subsistence tribes.

"Gibe III is the most destructive dam under construction in Africa. The project will condemn half a million of the region’s most vulnerable people to hunger and conflict," said Terri Hathaway, director of International Rivers’ Africa programme. — BBC

Problems arose around financial difficulties, lack of transparency, and the environmental and social impact assessment, which was not published until two years after construction began. The assessment suggested that the project would cause minimal problems environmentally and socially, however there are a large number of critics who consider it to be flawed both in terms of thoroughness and objectivity. Among these critics is the African Resources Working Group who released statements saying that "The quantitative [and qualitative] data included in virtually all major sections of the report were clearly selected for their consistence with the predetermined objective of validating the completion of the Gibe III hydro-dam" and that despite claims made by the government to the contrary, the dam would "produce a broad range of negative effects, some of which would be catastrophic." — Wikipedia

3 Comments

  1. Most of what I’ve seen recommended here to raise the water table and deal with floods is to use Swales, River Meandering and Dams to increase the amount of time water has to sink into the ground.

    How is a Giant Damn which should stabilize the flow of water going to contribute to the problem? Are they using it redirect water out of the watershed?

    Not saying they’re wrong… just trying to understand the challenge.

  2. Hi Scott. In this instance, water stabilisation is a problem. The nomadic tribes of the lower Omo river practice flood recession agriculture – that is to say they rely on seasonal floodplain flooding, which brings nutrients and water. After flooding recedes they plant. Once the dam is complete, these places will remain dry (and what does flow will carry little to no sediment).

    Re large dams in general, there’s a lot of info on this on the net:

    https://www.internationalrivers.org/node/1545

    https://science.jrank.org/pages/1942/Dams-Impact-dams.html

    https://www.newscientist.com/article/dn7046-hydroelectric-powers-dirty-secret-revealed.html

    These should not be confused with the small dam/swale configurations in small permaculture systems.

    Size does matter (smaller is better).

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