ALM Case Study - 2010: Mainstreaming Climate Change in Integrated Water Resources Management in Pangani River Basin

Summary:

The Pangani River Basin in north-eastern Tanzania (with about 5% of its area in southern Kenya) drains the southern and eastern sides of Africa’s highest peak, Mt. Kilimanjaro (5,985 m), then passes through the arid Maasai Steppe, draining the Pare and Usambara Mountain Ranges before reaching the coastal town of Pangani, marking its estuary with the Indian Ocean. The basin supports the rapidly-expanding economic centres of Arusha and Moshi. Most of the Basin’s 3.7 million people rely, either directly or indirectly, on agriculture for their livelihoods. Irrigated agriculture in the basin (estimated at 30,000 to 40,000 ha) is a significant contributor to Tanzania’s food security and supports almost 3 million livelihoods. The basin also includes four hydroelectric power facilities with a combined production capacity of about 17% of Tanzania’s national power grid capacity, although these facilities seldom generate electricity at full capacity due to water stress. The Pangani basin is home to globally important biodiversity resources in the Kilimanjaro, Arusha and Mkomazi National Parks/Game Reserves. The Eastern Arc Mountain Forests and Coastal Forests of the area are one of Conservation International’s 25 global biodiversity hotspots. Mt. Kilimanjaro is a World Heritage Site and its famous glacial ice cap has become a symbol for climate change. The Kilimanjaro glaciers have lost more than 55% of their surface area in the past four decades and are expected to disappear completely by 2025. While the extent of the contribution of the glaciers to the basin’s hydrology is under debate, climate studies in the region have demonstrated an overall warming trend and progressively reducing precipitation since 1950.

Adaptation Experience:

Pangani is already a water-stressed basin (defined as <1,200 cubic meters of water per person per year) and climate change is expected to greatly exacerbate this condition. Tanzania’s Initial National Communication (INC) predicts a 1.8ºC to 3.6ºC temperature increase, decreasing rainfall, and increased evaporation in the Pangani Basin, which together are expected to result in a 6-10% decrease in the annual flow. River flows have already reduced to the point that seawater intrudes about 20 km upstream from the estuary.

Results and Learning:

Key lessons learned:

  1. Institute measures that speed up production of technical information: Although implementation rate has improved to some extent, the project is still experiencing slow movement for Outcomes 2 and 4. IUCN needs to institute measures that clearly demonstrate speeding up the production of the technical information from the two outcomes.
  2. Decouple outcomes, if possible, to ensure timely ensure the timely delivery of project outcomes in the most efficient way by the end of the project duration: Several changes at the project input/activity levels are recommended and approved by the PSC to exercise the adaptive management during the project implementation to ensure the timely delivery of the project outcomes in the most resource efficient way by the end of the project duration. The climate change component (Outcome 3) has been decoupled from the flow assessment (Outcome 1) so that the IFM can be completed without further delay without compromising the quality of the climate data to be yielded from the climate change component. Outcomes 2 and 4 depended to some extent on technical information generated under Outcome 1. Consequently the deliberate slow downs in Outcome 1 introduced some delays to these other outcomes.
  3. Be aware of logistical constraints (e.g. staffing capacity, deficiencies in methodologies of climate change modeling): In the community participation component (Outcome 2) the roadmap for establishment of the catchment forums has been revised to improve implementation and take into consideration the staffing capacity within the PBWO and SNV. This includes establishment of a core team to implement and monitor the process. The core team and experts are training facilitation teams to build the capacity ion IWRM in communities and to enable the formation of catchment forums. In terms of Outcome 1, experts' review of the original climate change modeling found deficiencies in the methodology. This resulted in delay in conducting the final workshop for the flow assessment to conclude the Flow Assessment component. PSC made recommendation on how to proceed with the climate change modeling and avoid further delay in concluding the flow assessment component, which allowed the move towards finalizing component 1.
  4. Identify synergies with similar projects and ensure there is coordination between them: The project and PMU faced challenges to ensure synergies and coordination among a number of projects under the Pangani River Basin Management Programme. It also faced challenges to ensure the timely delivery of outputs that heavily require communities' involvement and participation. The inclusion of new partners/projects in the existing Pangani River Basin Management Programme indeed posed challenges but brought opportunities and flexibilities at the same time which cannot be realized by a project-based approach. The PSC and PMU focused on the opportunities that the programmatic approach brought to ensure the overall project/programme objective, using the adaptive management. For example, budget reallocation from the community-based adaptation pilot activities to the climate study was necessary to ensure that the climate data generate by the project is scientifically reliable. The reallocation was approved by the PSC. Later, PMU, together with IUCN managed to source funding from another project under the same Programme to conduct the community-based activities without significant compromise.
  5. Allocate time to develop meaningful partnerships: The time needed to engage communities fully in the IWRM planning processes is gained partly by adding a few new partners/projects under the same Programme which resulted in the extension of the expected funded period of the Programme. Management and implementation of the Programme supported by multiple projects/donors will take significant extra efforts, but the project witnessed during this reporting period that it also offered significant flexibility.
Sustainability:

Further input is needed.

Replication:

Further input is needed.

Funding Source:
GEF-SGP

Preparing the Afulilo Environmental Enhancement Project

  • Project details

  • Implementing Agency and Partnering Organizations:
    Asian Development Bank, Samoa Electric Power Corporation (EPC)
    Summary:

     The Afulilo Hydropower Project was first initiated in the early 1980's when consultations were undertaken with affected people. Asian Development Bank (ADB) approved a $5.3 million loan to the Government of Samoa in December 1986 as co-financing for the project. Other cofinanciers were the World Bank, the European Investment Bank, the European Union and Australian Agency for International Development. Construction of the project commenced in 1990. Continuous production of electricity commenced in August 1993.

    Contacts:

    ADB Contact:
    Emma Ferguson
    Email: eferguson@adb.org
    Tel: +6793318110

    Project Status:
    Under Implementation
    Project Details
    Funding Source:
    ADB
    Financing Amount:
    $1,200,000
    Cofinancing Total:
    $240,000
    Total Amounts:
    $1,440,000

Integrated National Adaptation Plan: High Mountain Ecosystems, Colombia's Caribbean Insular Areas and Human Health (INAP)

  • Project details

  • Implementing Agency:
    IDEAM, Coralina and Invemar, Instituto Nacional de Salud
    Implementing Agency and Partnering Organizations:
    Conservation International Colombia
    Summary:

    ###### Background

    Colombia has been found to be very vulnerable to the impacts of climate change. The first national communication (NC1) to the UNFCCC has indicated the highly vulnerable character of the country to the expected impacts from climate change .

    The NC1 identified high mountain habitats, insular and coastal areas and health as the areas of primary concern. More recently, studies commissioned as part of the preparation of the second communication and others have confirmed and indicated in more detail trends and impacts in these areas.

    Project Components:

    * Component 1) Making climate, climate variability, and climate change information available for adoption of adaptation measures and policies.

    * Component 2) Design and implementation of an adaptation program that supports maintenance of environmental services (including hydropower potential) in the Las Hermosas Massif in the central range of the Andes.

    * Component 3) Adaptation measures in Caribbean Insular areas; support the implementation of physical adaptation measures in order to reduce the vulnerability of the Caribbean Insular area, especially with regard to changes in rainfall and temperature, as well as sea-level rise.

    * Component 4) Responses to the increased exposure to tropical vector-borne diseases (malaria and dengue) induced by climate change.

    Expected Outputs:

    At least six pilot adaptation activities have been implemented, monitored and managed, addressing vulnerabilities to climate change in health, high mountain ecosystems and insular areas. Strengthened IDEAM capability to produce and disseminate relevant climate change information through availability of continuous and reliable climate information of relevance to major climate change vulnerabilities in mountain ecosystems, insular areas and health,. Maintenance of the hydropower generation ability, measured through water regulation of the Las Hermosas Massif on the Amoya river watershed. Adaptation program designed and incorporated in regional development plans for the Las Hermosas Massif and insular areas. Impacts on maintenance of biodiversity and land degradation documented. Strengthened public health program incorporating management measures to meet the increased threats from dengue and malaria induced by climate change.

    Contacts:

    Jocelyne Albert
    Regional Coordinator
    Telephone: 202-473-3458
    Email: jalbert@worldbank.org

    Project Status:
    completed
    Primary Beneficiaries:
    n/a
    Project Details
    Funding Source:
    GEF Trust Fund, Government, Others
    Financing Amount:
    11,900,000
    Cofinancing Total:
    5,570,000
    Total Amounts:
    17,470,000

Integrated management of the Blue Nile Basin in Ethiopia : Hydropower and irrigation modeling

  • Project details

  • Summary:

    Ethiopia is at a critical crossroads with a large and increasing population, a depressed national economy, insufficient agricultural production, and a low number of developed energy sources. The upper Blue Nile basin harbors considerable untapped potential for irrigation and hydropower development and expansion. A hydrologic model with dynamic climate capabilities indicates that large-scale development typically produces benefit-cost ratios from 1.2-1.8 under historical climate regimes for the projects specified.

    Project Status:
    Unknown
    Project Details
    Cofinancing Total:
    n/a