ADB, Climate Change and Water Security in South Asia, by Arnaud Cauchois
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ADB, Climate Change and Water Security in South Asia, by Arnaud Cauchois

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ADB, Climate Change and Water Security in South Asia, by Arnaud Cauchois ADB, Climate Change and Water Security in South Asia, by Arnaud Cauchois Presentation Transcript

  • ADB, Climate Change and Water Security in South Asia Arnaud Cauchois Senior Water Resources Specialist South Asia Regional Department, ADBGWP Regional Workshop on Climate Change, Food and Water Security Colombo, Sri Lanka 24-25 February 2011
  • Key Message Asia and particularly South Asia with its large population and limited water resources is at particular risk from climate impacts, especially its water and agriculture sectors. Water management will be drastically affected by our changing climate, but adapting – while requiring innovation and new approaches – will draw upon and reinforce best practices of the water profession. South Asian countries are beginning to respond, with policy dialogue, funding and technical support – more is coming soon.
  • Asia – Water Insecurity and Climate Change
  • Climate Change Priority Concerns in South Asia: Food SecurityNCAR CCSM, SRES A2, no CO2 fertilization
  • ADB Climate Change Projects
  • ADB’s Climate Change Program Modalities: Finance Knowledge PartnershipPriorities: 1. Scaling-Up Clean Energy 2. Encouraging Sustainable Transport, Urban Development 3. Managing Land Use and Forests for Carbon Sequestration 4. Promoting Climate-Resilient Development 5. Strengthening Policies, Governance and Capacities
  • Climate Change Priority Concerns in South Asia: Water Resources • Supply-Demand: growing imbalances in many regions • Glacial Retreat: loss of warm season and drought year flows • Groundwater: over- exploitation in many basins; climate change impacts on groundwater recharge uncertain • Coastal Aquifers: saline intrusion from Sea Level Rise; over-pumping
  • ADB’s Modalities to Address Water Security• Convening Power and Regional Dialogue: Asian Water Development Outlook 2010, Asia-Pacific Water Forum and Summits – Steering Group on Water and Climate Change, Greater Mekong Subgroup, Regional Knowledge Hubs, Network of Asian River Basin Organizations, special conference, etc.• Grant Technical Assistance – Regional and Country Focused: For capacity and institutional development, policy and advisory services, technical and analytical work, and project and program preparation, or blend of the above• Financing – Loans and Grants – Infrastructure Focused: Project lending for water projects, Program loans for policy reform, Climate Change Trust Fund, Clean Technology Fund, GEF, leverage bilateral grant financing
  • Approach to Water Insecurity and Climate Change – 3 Is Projecting climateClimate Change change impacts for Information water resources – downscaling, modeling Identify vulnerability and Impact risks (mapping) for river Assessments basins and cities Investments in infrastructure, Adaptation capacity development, and strategies and institutions to mitigate risks Investments and promote adaptation
  • Adaptation in the Water Sector: Financing Options Water Finance Program (WFP) Regional Technical Assistance (RETA) “Managing Water in Asia’s River Basins” (TA 6470) – IWRM emphasis “Enabling Climate Change Responses in Asia and the Pacific” – capacity building, disaster risk reduction, water sector ADB Climate Change Fund (CCF) Other co-financing
  • Examples: ADB’s Climate Change and Water Activities in South Asia TA 43169: India - Support for the National Action Plan on Climate Change TA 7326: Sri Lanka - Strengthening Capacity for Climate Change Adaptation Regional TA 7547 – “Supporting Investments in Water Security in River Basins (Indonesia, Nepal and Uzbekistan)” Bangladesh - Strengthening the Resilience of the Khulna Water Sector to Climate Change Pakistan: Glacial Melt and Downstream Impact on Indus-Dependent Water Resources and Energy
  • India: National Action Plan for Climate Change: Support for the National Water Mission India MoWR requests ADB assistance in adapting water sector to climate change Desired outputs: legislative framework and capacity at the state level to enact NWM recommendations for climate change adaptation Vehicle: Policy and Advisory Technical Assistance (PATA) Funding: $750,000 (grant) Source: ADB Climate Change Fund (CCF)
  • India: National Action Plan for Climate Change: Support for the National Water Mission  All-India Water Systems  3 Pilot Sub-basins representing specific climate change risks Category Pilot Basin Focal State Associated States Snow-fed Sutlej Punjab Himachal Pradesh Groundwater Chambal Madhya Rajasthan Pradesh Coastal Cauvery (delta) Tamil Nadu Pondicherry
  • Bangladesh: Strengthening the Resilience ofthe Khulna Water Sector to Climate Change Bangladesh vulnerable to: - Flooding - Drought - Sea Level Rise Khulna: 3rd largest - 1.4 million (2007) Shortage of water supply (currently relying on shallow groundwater) Increased urban flooding Drainage congestion Vehicle: PATA Funding: $600,000 (grant) Source: ADB CCF
  • Bangladesh: Strengthening the Resilience ofthe Khulna Water Sector to Climate Change Flow Diagram of the Study Review of available data Surveys to collect and information additional data Deriving scenario’s 2030-2050 Projections for 2030 and 2050 Climate Change Socio-economic Development and calibration of • Temperatureclimate development mathematical models • Precipitation • Population • Sea Level Rise • Water Demand Climate • Upstream (model) • Land Use analysis River Discharge • GDP Growth low trend high Rainfall Sea level, intensities Ch. 3 rainfall, temp Impact Assessment Southwest Urban Urban Drainage Regional Water Drainage Hydrodynamic levels Water Supply System Model Model • Water logged area System • Flood depth • Water availability • Affected population river flows • River salinity Waterlogged • Damages area, depth, and duration Salinity Model Identification and Evaluation of Adaptation Options river salinity • least-cost analysis (water supply) • cost-benefit analysis (urban drainage)
  • THANK YOU Arnaud Cauchois,Senior Water Resources Specialist SAER/SARD/ADB acauchois@adb.org