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ISSN 2975-9331

Categoria: Politics and Administration

Water Planning

Posted on | By caparicio

“The world is full of islands” (Baldacchino, 2006, p.4). It is not surprising that, over the last decades, there has been an increased interest in island studies, attracting researchers from different disciplinary areas who, together, have been able to promote this “new” line of research, thus developing the so-called “island science”.

Island science, although young, has shown great relevance in international studies, as demonstrated by the editorial title of the journal Tijdschrift voor Economische en Sociale Geografie: “The coming of Age of island studies” (Baldacchino, 2004), thus proclaiming the “maturity” of island studies (King, 2010).

For Young, the island is a place of secrecy and mystery, but its isolation also conditions its historical evolution (Young, 1999, p. 2). In this sense, the insular specificity may be in correlation with the hydraulic issue? This entry intends, therefore, to make known the main trends of Hydraulics at the research level. In this sense, and with regard to island territories, the article by Paulo Espinosa and Fernanda Cravidão, in “Revista Sociedade & Natureza”, entitled “A Ciência das Ilhas e os Estudos Insulares: Breves reflexões sobre o contributo da Geografia / The Science of Islands and the Insular Studies: brief point of view about the importance of geography”, contains a set of themes to be studied and reflected upon.

All emersed lands, of greater or lesser size, are surrounded by oceans, so islands inevitably occupy an extremely important place in world life (Biagini; Hoyle, 1999, p. 1). There are facts that translate, in a synthetic way, the real value of islands worldwide, although they are often ignored by most researchers. According to Baldacchino (2007), nearly 10% of the world population, almost 600 million people, currently live on islands, occupying about 7% of the Earth’s surface. Approximately a quarter of the world’s independent states are islands or archipelagos. Furthermore, islands assume themselves as differentiated identities and spaces in an increasingly homogeneous world, as a result of the globalisation process.

Despite their value, small island spaces are often associated with a set of structural constraints since “as a consequence of their scale, small islands are limited in size, land area, resources, economic and population potential, and political power” (Royle, 2001, p. 42). Thus, it is not surprising that of the total number of sovereign countries that are not entirely insular, only two have their capital on an island, these being Denmark and Equatorial Guinea, reflecting a political and functional preference for continental areas to the detriment of territories exclusively surrounded by water.

Thus, there are many difficulties and potentialities that we can find in the islands. For this reason, these spaces are extremely rich in terms of scientific study. Lockard & Drakakis-Smith (1997) state that the themes of islands that have most attracted the attention of researchers include, apart from tourist activity, emigration and return migration, transport and accessibility, limited resources such as water, and economic development policies.

Therefore, water has always been an essential factor in establishing life, in general, and mankind in particular. The importance of this liquid has led to an evolution in the techniques of transport for human consumption over the millennia (Baptista, 2011).

Despite this evolution, verified throughout the years of existence of the human race, it was in more recent history, mainly in the 20th century, that major advances in water supply systems were verified, due to the need to respond to the population increase verified around the globe and the emergence of new materials, such as, for example, polymers. Also at the design level, a major evolution was noted due to the discovery of new hydraulic laws, which allow optimizing the supply conditions (Baptista, 2011).

In most current cases, buildings are supplied through a public network that carries drinking water. However, there are situations in which the water is supplied from wells. In these cases, it is necessary to proceed in order to guarantee the potability of the water (Baptista, 2011).

In the execution of this type of project, essential factors are taken into account, such as economy, the conditions of application and use, the routing requirements and also the chemical constitution of each material, always bearing in mind the legislation governing this type of system. It is based on the optimization of these factors that water supply networks are built (APA, 2018).

Water planning aims to ground and guide the protection and management of waters and the compatibility of their uses with their availability in order to (APA, 2018):

  1. Guarantee their sustainable use, ensuring that the needs of current generations are met without compromising the ability of future generations to meet their own needs;
  2. Provide criteria for allocation to the various types of intended uses, taking into account the economic value of each one, as well as to ensure the harmonisation of water management with regional development and sectoral policies, individual rights and local interests;
  3. Set environmental quality standards and criteria for water status.

From what has been described, I can say that there is no shortage of reasons to study this issue in an island context. Regardless of the perspective used, research on islands reveals a great thematic amplitude, since they can be analysed from different angles, and the discipline of Hydraulics can contribute to the study of “island sciences”, particularly with regard to hydraulic planning.

Sérgio Lousada

References

APA. (2018). Políticas, Água, Planeamento. Obtido de Agência Portuguesa do Ambiente: https://www.apambiente.pt/index.php?ref=16&subref=7&sub2ref=9#

Baptista, F. P. (2011). Sistemas Prediais de Distribuição de Água Fria. Lisboa: IST. Obtido de https://fenix.tecnico.ulisboa.pt/downloadFile/395142730852/Tese.pdf

Baldacchino, G. (2004). The Coming of Age of Island Studies. Tijdschrift voor Economische en Sociale Geographie. V. 95, n. 3, pp. 272-283. DOI: http://dx.doi.org/10.1111/j.1467-9663.2004.00307.x

Baldacchino, G. (2006). Extreme Tourism: Lessons from the world cold water. Oxford: Elsevier, p. 4.

Baldacchino, G. (2007). Introducing a world of islands. In: Baldacchino, G. (Ed.). A World of Islands. Charlottetown: University of Prince Edward Island, Institute of Island Studies, p. 1-29.

Biagini, E. & Hoyle, B. (1999). Insularity and Development on an Oceanic Planet. In: Biagini, E. & Hoyle, B. (Eds.). Insularity and Development: international perspectives on islands. London: Pinter, p. 1.

King, R. (2010). A geografia, as ilhas e as migrações numa era de mobilidade global. In: Fosnseca, M. L. (Ed). Actas da Conferência Internacional – Aproximando Mundos Emigração e Imigração em Espaços Insulares. Lisboa: Fundação Luso-Americana para o Desenvolvimento, p. 27-62.

Lockhart, D. & Drakakis-Smith, D. (1997). Island Tourism: Trends and Perspectives. London: Mansell, 320 p.

Royle, S. (2001). A Geography of Islands: Small Island Insularity. London: Routledge, p. 42.

Young, L. B. (1999). Islands: Portraits of Miniature Worlds. New York: W. H. Freeman and Company, p. 2.

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Island Vulnerability and Resilience

Posted on | By caparicio

Vulnerability and resilience are nebulous and contested concepts. Island studies has provided plenty for understanding them, sorting out differences, and proposing ways forward. Two key points are (i) vulnerability and resilience are not opposites and (ii) they are processes, not states.

Vulnerability and resilience are social constructions. Many languages do not have direct translations for the words and many cultures do not have the notions, especially as defined and debated in academia. As such, both must be explained in detail to be communicated and acted on. Island studies contributes significantly by noting that both exist simultaneously, meshing with each other, and that both must arise by people and societies interacting with themselves and their environments. They are also much more than interaction, since nature and culture cannot be separated, as is the case for society and the environment. Thus, vulnerability and resilience are simply part of being, rather than distinct entities or traits.

As such, they express and espouse reasons for ending up with situations and circumstances where dealing with opportunity and adversity is more possible or less possible. They are long-term processes describing why observed states exist, not merely descriptions of those states. These explanations must cover society and the environment interlacing rather than disconnecting from one another and must involve histories and potential futures, not merely snapshots in space and time.

For islands, environmental phenomena and changes are frequently seen as exposing or creating vulnerabilities and resiliences. Yet an earthquake or the changing climate do not tell people and societies how to respond. Instead, those with power, opportunities, and resources make decisions about long-term governance aspects including equality, equity, collective support, and societal services.

We know how to construct infrastructure to withstand earthquakes. This task cannot happen overnight, but requires building codes, planning regulations, skilled professions, and choices in order to succeed. Taking island examples, leaders inside and outside Haiti controlling the country over decades decided not to build for earthquakes, leading to devastating disasters in 2010 and 2021. Meanwhile, Japan adopted a different approach meaning that few collapses were witnessed despite earthquakes in 2003, 2011 (which had a terrible tsunami toll), and 2022 that were far stronger than Haiti’s.

This long-term process of stopping or permitting earthquake-related damage is a societal choice, meaning that disasters emerge from the choice of vulnerability and resilience processes. Disasters do not come from earthquakes or other environmental phenomena, so they are not from nature and “natural disaster” is a misnomer.

Since climate change affects the weather and weather does not cause disasters, climate change does not often affect disasters. For instance, islands have experienced tropical cyclones for millennia, with the storm season happening annually. Plenty of knowledge exists to avoid damage and plenty of time has existed to implement this knowledge, yet disasters are still witnessed frequently such as Hurricane Maria in the Caribbean in 2017 and Cyclone Harold in the Pacific in 2020. When people and infrastructure are not ready for a storm, then disasters occur. Climate change increases intensity and decreases frequency of tropical cyclones, yet does not impact long-term human choices to prepare (creating resilience) or not (creating vulnerability). The choice not to do so is a crisis of human choice, not a “climate crisis” or “climate emergency”—so those phrases are also misnomers.

Island studies has long taught the islander mantra that environmental and social changes are always to be expected at all time and space scales. Vulnerability becomes the social process of expecting life to be constant and not being ready to deal with different or altering environments, at short (e.g. earthquake) or long (e.g. climate change) time scales. Vulnerabilities most commonly arise because people do not have the options, power, or resources to change their situation due to factors such as poverty, oppression, and marginalisation. Others make the decision for the majority to be vulnerable. Resilience becomes the process of continual adjustment and flexibility to make the most of what the ever-shifting environment and society can offer to support everyone’s life and livelihoods. To do so requires options, power, and resources.

Yet island studies demonstrates that limits to resilience are nonetheless evident. Human history displays a long list of island communities being wiped out and entire islands being forcibly abandoned. Manam Island, Papua New Guinea has been evacuated a few times due to volcanic eruptions. Many Pacific island communities disappeared in the fourteenth century due to a major regional climatic and sea-level change while nuclear testing during the Cold War left many atolls uninhabitable. The Beothuk indigenous people of Newfoundland died out due to violent and disease-ridden colonialism. In the 1960s and 1970s, Chagossians were forced off their Indian Ocean archipelago to make way for a military base. All such situations test resilience—or lose it entirely.

Island studies thus demonstrates the construction of vulnerability and resilience as concepts, as processes, and as realities, illustrating the care in interpretation and application needed for both in order to capture a comprehensive picture. Vulnerability and resilience neither contradict nor oppose each other, rather overlapping and morphing according to context and nuance. Island vulnerability and resilience are very much based on the perspectives of those observing and affected.

Ilan Kelman

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