Taking Stock of Climate Change Induced Sea Level Rise across the West African Coast

Nyadzi, Emmanuel; Bessah, Enoch; Kranjac-Berisavljevic, Gordana

doi:10.1080/10406026.2020.1847873

Cited by 15 publications

(7 citation statements)

References 41 publications

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“…A previous study revealed that the highest tidal amplitudes (typically 2.8–4.7 m) are recorded in Guinea, Guinea-Bissau, and Sierra Leone 29 . According to previous studies, relative sea level change is also evident at all locations 14 (Supplementary Fig. 3 ).…”

Section: Discussionsupporting

confidence: 81%

“…The West African coast faces increased vulnerability and risk due to natural events like sea-level rise and storm intensities, exacerbated by the region's low-lying status 13 . Moreover, most WA coastal countries are undergoing rapid population growth, urbanization, coastward migration, associated socio-economic growth, and dramatic coastal change 14 . Converging crises: rising seas, fast-growing populations, land pressure, and a lack of low-cost housing face most of WA's coastal cities.…”

Section: Introductionmentioning

confidence: 99%

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Coastal vulnerability assessment of the West African coast to flooding and erosion

Dada,

Almar,

Morand

2024

Sci Rep

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Global coastal areas are at risk due to geomorphological issues, climate change-induced sea-level rise, and increasing human population, settlements, and socioeconomic activities. Here, the study examines the vulnerability of the West African (WA) coast using six satellite-derived geophysical variables and two key socioeconomic parameters as indicators of coastal vulnerability index (CVI). These geophysical and socioeconomic variables are integrated to develop a CVI for the WA coast. Then, the regional hotspots of vulnerability with the main indicators that could influence how the WA coast behaves and can be managed are identified. The results indicate that 64, 17 and 19% of WA coastal areas had high to very high CVI, moderate CVI, and low to very low CVI, respectively. The study reveals that while geophysical variables contribute to coastal vulnerability in WA, socioeconomic factors, particularly high population growth and unsustainable human development at the coast, play a considerably larger role. Some sections of the WA coast are more vulnerable and exposed than others, particularly those in the region's northwestern and Gulf of Guinea regions. Climate change and human presence may amplify the vulnerability in these vulnerable areas in the future. Hence, future coastal economic development plans should be based on a deep understanding of local natural conditions, resource status, and geophysical parameters to prevent negative coastal ecosystem transformation. It is also essential to establish a coastal management plan that would facilitate the development of desired actions and stimulate sustainable management of West African coastal areas.

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Section: Discussionsupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Coastal vulnerability assessment of the West African coast to flooding and erosion

Dada,

Almar,

Morand

2024

Sci Rep

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“…8 from the countryside. However, increased urbanization has put the most vulnerable people's livelihoods and the environment at risk due to the effects of climate change, such as rising sea levels, coastal erosion, and flooding (Nyadzi et al, 2020).…”

Section: Sea Level Rise and Coastal Erosionmentioning

confidence: 99%

Climate Change-Related Drivers of Migration in East Africa: An Integrative Review of the Literature

Chetto,

Mdemu,

Kihila

2024

ESSD

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Despite the growing academic concern and policy interest in climate change drivers of migration, scientific evidence on the topic remains contested, with divergent claims of positive and negative contributions of climate change on human migration and displacement. This review seeks to assess the climate change-related drivers of migration with a focus on three East African countries: Tanzania, Kenya, and Uganda. They are among the most vulnerable countries in Africa, with one of the most mobile populations. The study used the available literature on climate change and migration as the data source. About 22 research articles on climate change and migration were sourced from the Web of Science and Scopus databases and critically reviewed. The review generally indicates that climate change effects such as frequent drought and flood disasters, livestock pests, and crop diseases influence migration and displacement in the region. On the other hand, rising sea levels pose imminent risks that can cause migration if adaptation measures are not taken. The review has also revealed that responses to drought or livestock and crop diseases, be it localized adjustment or out-migration, are determined by households' adaptive capacity. For rapid onset climate events such as floods, the most vulnerable are the less fortunate living in poorly constructed structures in flood-prone zones. This review proposes strengthening the climate policy framework by mainstreaming climate change migration in East African nations’ adaptation plans. It also calls for promoting alternative livelihood activities as an adaptation strategy in areas prone to climate change to lessen human-forced migration and displacement.

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“…West Africa is one of the most vulnerable regions to climate change; its effects could lead to negative changes in marine resources that threaten the livelihoods and well-being of local communities who depend on fisheries for food and income (Lam et al, 2012). These impacts, including changes in the intensity and seasonality of precipitation, upwellings, coastal currents, salinity, oxygen, and acidity levels, are likely to be aggravated by mineral, oil, and gas exploitation, the degradation of mangroves and other coastal habitats, and the damage to coastal infrastructures, which increases the food security risk of coastal communities and fishers (Sambe et al, 2011;Nyadzi et al, 2020). The rate of sea-level rise in West Africa, particularly between 10°N and 10°S, is slightly higher than the global average of 3.5-4.0 mm/year (Scambos and Stammerjohn, 2020).…”

Section: Pollution and Ecosystem Healthmentioning

confidence: 99%

Diagnostic analysis of the Canary Current System of West Africa: the need for a paradigm shift to proactive natural resource management

Osemwegie,

Delgado,

Arimiyaw

et al. 2021

Ocean Coast. Res.

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Large exports of land-based contaminants to the ocean exacerbate the effects of climate change, pollute ocean waters, disrupt biogeochemical cycles, harm marine organisms, and consequently jeopardise food security and the livelihoods of ocean-dependent communities. The Canary Current Large Marine Ecosystem (CCLME) is characterised by a mix of the Atlantic Ocean basin waters, reverse flow from the Mediterranean Sea, and inland waters from adjacent countries. This biodiversityrich ecosystem is a source of ecosystem goods and services that provide sustenance for populations in the coastal states of West Africa and beyond. However, with the ocean surface warming, ocean productivity and fisheries' outputs have declined across multiple trophic levels. Therefore, in this diagnostic study based on a systematic literature review (publications from 2009 to 2020), we (a) provide an integrative assessment of the CCLME with the exception of Morocco, in the context of the modular large marine ecosystem framework using the categories 'environmental' (productivity, fish and fisheries, pollution, and ecosystem health) and 'non-environmental' (socioeconomic and governance), and (b) identify knowledge gaps and data scarce regions. The key drivers of change in the CCLME were identified as fishing pressure, land-based pollution, coastal habitat loss, and climate change. Productivity, land-based pollution, and ecosystem health were priority areas for data collection in the CCLME, with data deficiencies particularly apparent in The Gambia and Guinea. Therefore, to mitigate further degradation and accelerate progress toward sustainable management of the CCLME, research should be conducted in these priority areas of data deficiency. Furthermore, as most drivers of change in this ecosystem are related to weak management and a lack of regulatory enforcement, we recommend effective implementation, monitoring, and enforcement of existing national and transboundary regulations, as well as ecosystem-based human-centred management approaches, as proactive strategies for decoupling anthropogenic disturbances from climate change and optimising the productivity of the CCLME.

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Taking Stock of Climate Change Induced Sea Level Rise across the West African Coast

Cited by 15 publications

References 41 publications

Coastal vulnerability assessment of the West African coast to flooding and erosion

Coastal vulnerability assessment of the West African coast to flooding and erosion

Climate Change-Related Drivers of Migration in East Africa: An Integrative Review of the Literature

Diagnostic analysis of the Canary Current System of West Africa: the need for a paradigm shift to proactive natural resource management

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