1. www.gwp.org Promoting Effective Trans-basin Water Use and Management Cooperation Among Riparian Nations: From Principle to Practice Presented by DAN TARLOCK

2. www.gwp.org August2015 Continuation of GWP Background Paper 17: International law- Facilitating Transboundary Water Cooperation This paper is directed GWP basin partners, water managers and water professionals who work with trans-basin water management institutions. The paper presents an analytical model to measure effective trans-basin cooperation Purpose of the Background Paper

3. www.gwp.org August2015 Aspiration vs effective cooperation To cooperate or not? The role of international water law Preliminary cooperation Open-ended cooperation Specific issue cooperation Allocation and cooperation Cooperation through cost and benefits sharing Conclusions Table of Content in shell

4. www.gwp.org August2015 The primary challenge for trans-basin management is to move from formal to effective cooperation Formal cooperation refers to agreements among riparian nations to cooperate without specific cooperation goals Effective cooperation is outcome cooperation Water Resources Challenges

5. www.gwp.org August2015 Outcome cooperation refers to meaningful steps to improve water security in basin by allocating, managing or re-allocating shared water resources Outcome cooperation can include Shared financial benefits An initial allocation of each nation’s water entitlement A reallocation to provide fairer access among all basin nations Adaptation to changed conditions such as climate change or the restoration of degraded aquatic ecosystems Water Resources Challenges

6. www.gwp.org August2015 Existing transboundary-basin cooperation studies do not distinguish among different levels of cooperation along the cooperation continuum Effective transboundary basin cooperation is a central element of enhanced basin water security Cooperation must provide measurable benefits to basin nations Effective cooperation requires a strong legal framework International water law provides such a framework Conclusions in the paper

7. www.gwp.org August2015 There are many examples of the failure of trans-basin states to cooperate, but There are examples of effective cooperative cooperation These examples provide precedents which can be adapted to the hydrological and political context of individual basins Effective cooperation can be integrated into the GWP’s IWRM framework to help individual basins achieve concrete water security goals Key messages

8. www.gwp.org August2015 Read the full paper here: http://www.gwp.org/en/ToolBox/PUBLICATIONS/Background- papers/ For more knowledge products of GWP Technical Committee here: http://www.gwp.org/en/ToolBox/PUBLICATIONS/