Abstract
Traditionally, international water resources have been managed by riparian states based essentially on a technical hydraulic approach, addressing navigation concerns, water flows at the border and shared hydraulic structures, besides the definition of political borders. During the 1990s, the possibility of a paradigm change emerged, where a “technical hydraulic management approach” seemed to be giving way to a more “political environmental governance approach”. Yet, in many cases, this change did not ensue. This article argues that several riparians are trapped in stalemate due to a too strong sovereign approach to their water relations. Adopting a critical perspective on hydro-hegemony, this article argues that this framework of analysis is too limited since it is embedded in a Westphalian concept of sovereignty. To support this argument, the article draws on the Iberian Peninsula water politics. These riparians are still embedded in notions of territorial sovereignty, not being able to take on a holistic water basin governance regime embedded on considerations of equity, human rights and social justice. The article concludes that it is vital to move beyond a static sovereignty-based analysis of riparian relations and engage in a dynamic discussion of different water governance models and their consequences concerning peace and development.

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Notes
This understanding is not uncontested, and some riparians, such as Egypt, have challenged its implementation. Nevertheless, when analyzing international water treaties, one can conclude that these overall attributes, although not always explicit, can be found either as an implicit part of treaties or as a practice among riparians.
The hydro-hegemony framework of analysis explains how a riparian’s hegemonic position in a river basin is a result not only of its riparian position, but also of its power and exploitation potential (Zeitoun and Warner 2006). For these authors, power constitutes the main determinant of the degree of control and access to water resources attained by each riparian state.
The analysis is also informed by qualitative open-ended interviews conducted during 1998 and 1999 with Portuguese and Spanish water specialists as well as with Portuguese decision makers and planners responsible for the decisions that led to the Foz Côa Dam protests. This was part of an overall research project of the 1990s Foz Côa conflict in Portugal, which contributed to a change in Portugal’s water politics paradigm and constituted the background context for the negotiation of the Albufeira Convention.
Portugal was under Spanish rule from 1580 to 1640 due to royal family alliances. In 1640, Portugal re-gained its independence by force of arms.
For an analysis of different water governance models, see Lopes (2009).
The Water Law was also a result of the necessity to transpose the European Union Water Framework Directive into national legislation.
The fact that Spain is also downstream in the Guadiana river basin is considered not significant since almost all the development is concentrated in the upper Guadiana in Spanish territory.
The factor “power” was calculated based on gross domestic product per capita (Eurostat 2010), number of military troops (International Institute for Strategic Studies—The Military Balance 2010) and the percentage of voting power held by each country in the European Parliament.
Here reflecting the number of large dams in each country: Portugal with 191 and Spain with 1200 (European Environment Agency 2010).
The arbitrator commission would be headed, in the case of a technical dispute, by an engineer nominated by the Zürich Polytechnic Institute (now ETH), and if the dispute was legal, then by specialist appointed by the International Court of Justice.
A supply-side approach adopts policies that are dedicated to taking more water where, when and to whom it is needed.
Spain has eight main rivers, of which 5 flow into the Atlantic Ocean and the other three into the Mediterranean Sea. Four of the former cross Portugal before reaching the Atlantic Ocean.
This was according to the Dublin Principles, 1992.
Portuguese authorities had a copy of the Spanish Plan since the beginning of 1993 (Lopes 2001), which further fueled Portuguese public contestation, accusing the Portuguese government of lack of strength and sovereignty.
During the negotiations, Spain agreed to halt its projects to transfer water from Spanish–Portuguese rivers basins (Vlachos and Correia 2000).
For an in-depth study on “mechanisms, types, and frequencies of water resources data and information sharing,” see Gerlak et al. (2011).
Portugal only ratified the United Nations Convention on the Law of Non-navigational Uses of International Watercourses in 2005 and Spain in 2009.
Positive and negative-sum hydro-hegemony are understood here as more cooperative/peaceful and more hostile/violent, respectively.
For a discussion on hydro-hegemony and international water law, see Daoudy (2008), who discusses international law as a source of structural power, or Woodhouse and Zeitoun (2008), who suggest international law needs to take into account hydro-hegemonic dynamics. It should be noted that international law contributes to the international system’s structure but it is also a result of power politics.
Abbreviations
- EDP:
-
The public Portuguese Electricity Company
- NHP:
-
Spanish National Hydrological Plan
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Lopes, P.D. Governing Iberian Rivers: from bilateral management to common basin governance?. Int Environ Agreements 12, 251–268 (2012). https://doi.org/10.1007/s10784-012-9175-0
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DOI: https://doi.org/10.1007/s10784-012-9175-0