scholarly journals Food Security Concerns, Climate Change, and Sea Level Rise in Coastal Cameroon

Author(s):  
Wilfred A. Abia ◽  
Comfort A. Onya ◽  
Conalius E. Shum ◽  
Williette E. Amba ◽  
Kareen L. Niba ◽  
...  

AbstractFood security is a major public health priority in Cameroon, amidst climate change and sea level rise (CC/SLR), vis-à-vis the ever-increasing population growth with associated challenges. CC/SLR, singly or combine, is well known to have severe impacts on agricultural productivity, food security, socioeconomic activities and ecosystem (environment, plant and animal) health systems in coastal areas. They contribute to natural disasters including erosion, flooding, inundation of coastal lowlands, and saltwater intrusion, altogether reducing agricultural productivity. Additionally, these disasters provoke adverse animal, human, and environmental health implications; reduction in tourism; and potential close of some socioeconomic activities that constitute secondary (after agriculture), or main source of livelihood/income for many coastal indigents. Although there are inadequate reports on the impacts of CC/SLR, preliminary reports point to negative effects on crop production and socioeconomic activities in coastal Cameroon. This chapter highlights the susceptibility of coastal Cameroon agriculture and socioeconomic activities to CC/SLR. Furthermore, it has propose agricultural (CC/SLR and non-climatic) and educational intervention socioeconomic strategies for the mitigation and adaptation to CC/SLR and for sustainable agricultural productivity in coastal Cameroon. The proposed strategies may provide a small contribution toward a wider multi-stakeholder pool of strategies and which, when applied, may enhance food security in coastal Cameroon amidst CC/SLR and promote socioeconomic and touristic activities while reducing negative implications on animal, plant, human, and environmental health.

Author(s):  
Wilfred A. Abia ◽  
Comfort A. Onya ◽  
Conalius E. Shum ◽  
Williette E. Amba ◽  
Kareen L. Niba ◽  
...  

The Holocene ◽  
2021 ◽  
pp. 095968362110482
Author(s):  
Kelvin W Ramsey ◽  
Jaime L. Tomlinson ◽  
C. Robin Mattheus

Radiocarbon dates from 176 sites along the Delmarva Peninsula record the timing of deposition and sea-level rise, and non-marine wetland deposition. The dates provide confirmation of the boundaries of the Holocene subepochs (e.g. “early-middle-late” of Walker et al.) in the mid-Atlantic of eastern North America. These data record initial sea-level rise in the early Holocene, followed by a high rate of rise at the transition to the middle Holocene at 8.2 ka, and a leveling off and decrease in the late-Holocene. The dates, coupled to local and regional climate (pollen) records and fluvial activity, allow regional subdivision of the Holocene into six depositional and climate phases. Phase A (>10 ka) is the end of periglacial activity and transition of cold/cool climate to a warmer early Holocene. Phase B (10.2–8.2 ka) records rise of sea level in the region, a transition to Pinus-dominated forest, and decreased non-marine deposition on the uplands. Phase C (8.2–5.6 ka) shows rapid rates of sea-level rise, expansion of estuaries, and a decrease in non-marine deposition with cool and dry climate. Phase D (5.6–4.2 ka) is a time of high rates of sea-level rise, expanding estuaries, and dry and cool climate; the Atlantic shoreline transgressed rapidly and there was little to no deposition on the uplands. Phase E (4.2–1.1 ka) is a time of lowering sea-level rise rates, Atlantic shorelines nearing their present position, and marine shoal deposition; widespread non-marine deposition resumed with a wetter and warmer climate. Phase F (1.1 ka-present) incorporates the Medieval Climate Anomaly and European settlement on the Delmarva Peninsula. Chronology of depositional phases and coastal changes related to sea-level rise is useful for archeological studies of human occupation in relation to climate change in eastern North America, and provides an important dataset for future regional and global sea-level reconstructions.


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