scholarly journals Coastal Protection Measures – Case of Small Island Developing States to Address Sea-level Rise

2018 ◽  
Vol 6 (3) ◽  
pp. 1-14
Author(s):  
Poh Wong
2012 ◽  
Vol 1 (2) ◽  
pp. 225-263 ◽  
Author(s):  
Tony George Puthucherril

Climate change and sea level rise are realities that are upon us and which will profoundly impact the lives and basic rights of millions of coastal residents all over the world. As the law stands both at the international and at certain national levels, the basic human rights of the climate displaced are not adequately protected. This paper identifies two possible displacement scenarios, based on the continued availability/non-availability of land in the face of sea level rise and other climate change impacts; namely, the sinking Small Island Developing States phenomeon, where land disappears and there is no surplus land to support habitation, and all other cases, where the coastal land is battered severely but it can be re-utilized through appropriate adaptation measures or even if coastal frontage land disappears there is still land available inland. On this basis, the paper proposes three possible solutions: (1) bilateral or regional treaties to facilitate resettlement of the inhabitants of sinking Small Island Developing States, (2) appropriate coastal climate change adaptation implemented via integrated coastal zone management and (3) creation of new arrangements under the international climate change regime to provide financial assistance and technological support to respond to both situations. Even though the primary focus of this paper is on coastal communities in South Asia, the lessons that it offers are relevant to other coastal contexts as well.


2021 ◽  
Vol 50 ◽  
pp. 245-259
Author(s):  
Rosanne Martyr-Koller ◽  
Adelle Thomas ◽  
Carl-Friedrich Schleussner ◽  
Alexander Nauels ◽  
Tabea Lissner

2017 ◽  
Vol 5 (1) ◽  
pp. 36-60 ◽  
Author(s):  
Clive Schofield

Sea level rise has provoked widespread concerns that low-lying parts of coastal States including parts or even the entirety of small island developing States face a looming threat of erosion and inundation. Concerns over the potential impacts of sea level rise on the location of baselines along the coast and therefore on the scope of national claims to maritime jurisdiction have also been raised. The article outlines climate change impacts on the oceans before briefly reviewing projections of sea level rise. A number of the complexities and uncertainties which make prediction of the scale and speed of global sea level rise problematic are highlighted. The importance of assessing relative sea level against the contrasting responses of coasts with diverse geophysical characteristics and distinct coastal ecosystems is emphasised. Potential impacts on island coastlines in the Pacific are then considered and implications maritime claims discussed.


2011 ◽  
Vol 3 ◽  
pp. 3-11
Author(s):  
Bronwyn Russel

The world is on the precipice of a new era in political history. For the first time in 400 years there will soon be fewer states in the world, as even the most modest estimates of sea level rise place the first of the small island Developing states (siDs), along with its population of over 13,000, underwater within the next 20 years. These are not the only states and individuals at extreme risk of soon finding themselves forcibly displaced by climate change.


Author(s):  
Koujiro TSUCHIDA ◽  
Makoto TAMURA ◽  
Naoko KUMANO ◽  
Hiromune YOKOKI

2021 ◽  
Vol 14 ◽  
pp. 117863292110208
Author(s):  
Subhashni Taylor

Anthropogenic climate change and related sea level rise will have a range of impacts on populations, particularly in the low lying Pacific island countries (PICs). One of these impacts will be on the health and well-being of people in these nations. In such cases, access to medical facilities is important. This research looks at the medical facilities currently located on 14 PICs and how climate change related impacts such as sea level rise may affect these facilities. The medical infrastructure in each country were located using information from a range of sources such as Ministry of Health (MoH) websites, World Health Organization, Doctors Assisting in South Pacific Islands (DAISI), Commonwealth Health Online, and Google Maps. A spatial analysis was undertaken to identify medical infrastructure located within 4 zones from the coastline of each country: 0 to 50 m, 50 to 100 m, 100 to 200 m, and 200 to 500 m. The findings indicate that 62% of all assessed medical facilities in the 14 PICs are located within 500 m of the coast. The low-lying coral atoll countries of Kiribati, Marshall Islands, Nauru, Palau, Tokelau, and Tuvalu will be highly affected as all medical facilities in these countries fall within 500 m of the coast. The results provide a baseline analysis of the threats posed by sea-level rise to existing critical medical infrastructure in the 14 PICs and could be useful for adaptive planning. These countries have limited financial and technical resources which will make adaptation challenging.


2020 ◽  
Author(s):  
Rosanne Martyr-Koller ◽  
Tabea Lissner ◽  
Carl-Friedrich Schleussner

<p>Climate impacts increase with higher warming and evidence is mounting that impacts increase strongly above 1.5°C. Therefore, adaptation needs also rise substantially at higher warming levels. Further<strong>, </strong>limits to adaptation will be reached above 1.5°C and loss and damage will be inferred. Coastal Nature-based Solutions (NbS) have arisen as popular adaptation options, particularly for coastal developing economies and Small Island Developing States (SIDS), because of their lower overall costs compared to traditional grey infrastructure approaches such as seawalls and levees; their economic co-benefits through positive effects on sectors such as tourism and fisheries; and a broader desire to shift toward so-called blue economies. Two NbS of particular interest for coastal protection are: 1) coral reefs, which reduce coastal erosion and flooding through wave attenuation; and 2) mangroves, which provide protection from storms, tsunamis and coastal erosion. Although there is international enthusiasm to implement these solutions, there is limited understanding of the future viability of these ecosystems, particularly in their capacities as coastal adaptation service providers, in a warmer world.</p><p>In this presentation, we highlight how long and with how much coverage coral and mangrove ecosystems can provide coastal protection services for future climate scenarios, using air temperature and sea level rise as climate change indicators. A mathematical model for each ecosystem is developed, based on the physical parameters necessary for the sustainability of these ecosystems. We investigate the protective capabilities of each ecosystem under warming and sea level rise scenarios compatible with: below 1.5°C warming; below 2°C warming; warming based on current global commitments to carbon emissions reductions (3-3.5°C); and with no carbon mitigation (6°C). Results show what temperature and sea level rise values beyond which these ecosystems can no longer provide coastal protective services. These results have also been framed in a temporal window to show when these services may not be feasible, beyond which more costly adaptation measures and/or loss and damage may be incurred.</p>


2017 ◽  
Vol 17 (3) ◽  
pp. 449-466 ◽  
Author(s):  
Isavela N. Monioudi ◽  
Adonis F. Velegrakis ◽  
Antonis E. Chatzipavlis ◽  
Anastasios Rigos ◽  
Theophanis Karambas ◽  
...  

Abstract. The present contribution constitutes the first comprehensive attempt to (a) record the spatial characteristics of the beaches of the Aegean archipelago (Greece), a critical resource for both the local and national economy, and (b) provide a rapid assessment of the impacts of the long-term and episodic sea level rise (SLR) under different scenarios. Spatial information and other attributes (e.g., presence of coastal protection works and backshore development) of the beaches of the 58 largest islands of the archipelago were obtained on the basis of remote-sensed images available on the web. Ranges of SLR-induced beach retreats under different morphological, sedimentological and hydrodynamic forcing, and SLR scenarios were estimated using suitable ensembles of cross-shore (1-D) morphodynamic models. These ranges, combined with empirically derived estimations of wave run-up induced flooding, were then compared with the recorded maximum beach widths to provide ranges of retreat/erosion and flooding at the archipelago scale. The spatial information shows that the Aegean pocket beaches may be particularly vulnerable to mean sea level rise (MSLR) and episodic SLRs due to (i) their narrow widths (about 59 % of the beaches have maximum widths < 20 m), (ii) their limited terrestrial sediment supply, (iii) the substantial coastal development and (iv) the limited existing coastal protection. Modeling results indeed project severe impacts under mean and episodic SLRs, which by 2100 could be devastating. For example, under MSLR of 0.5 m – representative concentration pathway (RCP) 4.5 of the Fifth Assessment Report (AR5) of the Intergovernmental Panel on Climate change (IPCC) – a storm-induced sea level rise of 0.6 m is projected to result in a complete erosion of between 31 and 88 % of all beaches (29–87 % of beaches are currently fronting coastal infrastructure and assets), at least temporarily. Our results suggest a very considerable risk which will require significant effort, financial resources and policies/regulation in order to protect/maintain the critical economic resource of the Aegean archipelago.


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