49 research outputs found
Chapter 9
Niger is a landlocked country in West Africa located between 11°37 ´ and 23°23 ´ north latitude and between 00°10 ´ and 16°00 ´ east longitude, with an area of 1,267,000 square kilometers. Niger shares borders wit
Ghana
Including inland water bodies, Ghana covers 238,539 square kilometers and
is located on the south central coast of West Africa. The country shares borders
in the east with Togo, in the north with Burkina Faso, and in the west
with Côte d’Ivoire. The topography of Ghana is mainly undulating, with most
slopes less than 5 percent and many not exceeding 1 percent. The topography
of the high rainforest is, however, mainly strongly rolling. The uplifted edges
of the Voltarian basin give rise to narrow plateaus between 300 and 600 meters
in elevation (Boateng 1998). Moving from the rainforest zone in the south to
the Sahara Desert in the north, rainfall generally decreases and temperature
increases. Rainfall is the most important climatic factor influencing vegetation
in Ghana. The wettest area is in the extreme southwest, where the rainfall is
over 2,000 millimeters per year. In the extreme north, the annual rainfall is less
than 1,100 millimeters. The driest area is at the southeastern coastal tip, where
the rainfall is about 750 millimeters. Much of the rain falls in intense storms
of short duration, especially at the beginning of the season, resulting in heavy
runoff and erosion. The annual mean relative humidity is about 80 percent in
the south and 44 percent in the north (Dickson and Benneh 1988). The mean
monthly temperature for the entire country is 25°C. Although temperatures
are uniformly moderate, there are important variations over different parts of
the country, reflecting altitude and distance from the sea..
The future of food security, environments and livelihoods in Western Africa: Four socio-economic scenarios
This working paper examines the development of regional socioeconomic scenarios for West Africa’s development, agriculture, food security and climate impacts. We present four globally consistent regional scenarios framed and outlined by regional experts who crafted narratives and determined key drivers of change. Stakeholders identified the type of actors driving change and the timeline of strategic planning as the most uncertain and most relevant factors of change affecting food security, livelihoods and environments in the region.
The scenarios were linked to the IPCC community’s global Shared Socio-economic Pathways (SSPs) and quantified using two agricultural economic models, GLOBIOM and IMPACT, in interaction with drivers outlined by the SSPs and guided by semi-quantitative information from the stakeholders. The quantification of the scenarios has provided additional insights into the possible development of Western Africa in the context of a global economy as well as how the agricultural sector may be affected by climate change. The scenarios process highlights the need to combine socio-economic and climate scenarios, to base these scenarios in regional expertise, and ways to make scenarios useful for policy design.
The objective of this working paper is to provide scenarios for future regional development for West Africa on the future of food security, environment, and rural livelihoods as well as offer details of the multi-stakeholder scenarios development process. Using both qualitative and quantitative scenarios we provide insights into the possible development of West Africa as well as a scalable framework for regional decision makers and the scientific community to use scenarios to build and test policies to make them more robust in the face of future uncertainty.
In these scenarios, strong economic development increases food security and agricultural development. Increased crop and livestock productivity may lead to an expansion of agricultural areas within the region but productivity improvements may reduce the pressure on land elsewhere. In the context of a global economy, West Africa remains a large consumer and producer of a selection of commodities. However, the growth in population in combination with rising incomes may lead to increases in the region’s imports. For West Africa, climate change is likely to have negative effects on both crop yields and grassland productivity, and lack of investment in agriculture may exacerbate them.
The aim of the regional scenarios is provide challenging contexts for policy makers to test and develop a range of national and regional policies. To date, the scenarios have been used in a number of policy design processes which include collaborations with ECOWAS priority setting, the National Plan for the Rural Sector for Burkina Faso (PNSR), and district and national level policy processes in Ghana
Results and Impacts of the Integrated Land and Water Management for Adaptation to Climate Variability and Change (ILWAC) Project: Evaluation Report
The objective of the evaluation was to assess the results and impacts of the activities of all ILWAC Trust Fundfinanced projects in West Africa using a selected subset, to identify key lessons learned, and to document best climatesmart practices for scaling up. The study entailed participatory evaluation of the results and impacts of various
interventions geared towards integrated water resources management for climate change and variability preparedness
in West Africa. In this respect, the study identified key lessons learned and documented best climate-resilient practices
for scaling up and dissemination to multiple stakeholders in the West African region.
1. Agriculture remains the backbone for sustaining livelihoods in West Africa but faces numerous challenges.
Agriculture is an important source of income, food and raw materials in West Africa, employing more than half of
the region’s population, which culminated in the adoption of the Comprehensive Africa Agriculture Development
Programme (CAADP) in 2003. Few countries, however, have managed to mobilize their agriculture sector to
deliver on development outcomes such as food and nutrition security, poverty reduction, economic growth, job
creation, youth employment and industrialization. Agriculture is vulnerable to climate change, resulting from
sensitivity and exposure to climate shocks and lack of capacity to cope with and adapt to such changes. ILWAC
evaluation study results from household surveys, focus group discussions and key informant interviews indicate
that agricultural productivity in the region remains low, lagging far behind other regions of the world. Contributors
to such low productivity include incidence of climate risks (drought, floods and high temperatures), pests and
diseases, low technology adoption, limited access to financial services, limited access to markets and market
information and limited access to good road networks (Plate 1). All the aforementioned contributors are valid
denominators for all the seven ILWAC project areas that were evaluated.
2. Farmers in West Africa are particularly vulnerable to climatic shocks because of their high dependence on
rainfed agriculture for their livelihoods. There is an evident lack of access to formal safety nets as indicated by
farmers in Senegal (ENRACCA-WA) and Burkina Faso (AmREACCAF and APESS) projects. Climate change has
already exerted significant impacts in the region. Since the 1970s, the region has experienced the occurrence of
many droughts. Temperatures have increased in the second half of the 20th Century, especially in the latter 20
years of the same period. Farmers reported drought (about 40% of treatment and control groups), as the most
prevalent climatic shock experienced over the last five years, followed by erratic rainfall, floods and invasion of
crop pests and locusts. We identified eleven coping strategies, out of which three strategies were categorized based
on a gradient of severity of food insecurity into low, moderate, and high food insecurity. During low food
insecurity, households employ food-maximizing strategies such as purchasing food and eating less food and
involving a low commitment of domestic resources that all enable quick recovery of households once the crisis
eases. In times of moderate food insecurity, a greater commitment of household resources is increasingly required
to meet subsistence needs. Coping strategies developed by households include sale of food reserves, use of savings,
sale of livestock, borrowing food, and borrowing money (from friends, relatives, private lenders and banks).
During high food insecurity, strategies are a sign of failure to cope with the food crisis and may involve drastic
options that may undermine their future ability to prevent, mitigate, cope, and recover from shocks. Households
adopt sale of assets such as land and homes, keeping children home from school, food aid and migration. The use
of irrigation and rainfall water harvesting for agriculture remain low, despite prevalent droughts and widespread
rainfed agricultural practices. One of the reasons is that most farming communities are far from rivers: hence
considerable investment is required to develop irrigation in many project areas.
3. Although farmers use various strategies highlighted above, they will need support to double their efforts with
innovative climate- smart agricultural practices and technologies to remain food secure. Areas where ILWAC
interventions were targeted showed positive results, but broader efforts to scale out the successes are needed to achieve
a greater impact. Overall, the ILWAC project beneficiaries reported higher adoption rates of climate-smart practices,
demonstrating a favourable impact of the project. However, low awareness of the most appropriate technologies to cope
with climate shocks was reported across all study areas yet, the region is expected to experience increasing climatic
shocks with total precipitation predicted to increase for the most part more notably between July and October by 2050.
Increases in precipitation are predicted to cause crop damages and floods. Overall, temperatures will rise by about 2°C
to 3°C over the same time period. Higher temperatures of 3°C to 6°C are projected for the end of the 21st century
(Niang et al., 2014). Despite these impending changes, few farmers have adjusted their farming strategies in response to
climate risks, owing to limited knowledge on appropriate adaptation options and low endowment with production
resources. As a result, ILWAC interventions were targeted to reverse these challenges. Their successful implementation
showed positive results, which are largely limited to specific areas of implementation. Therefore, broader scaling out ILWAC interventions provided success stories tailored to specific contexts (biophysical and socio- economic); hence
offered lessons and opportunities for replicating the bright spots with a regional approach. Across the seven projects,
evaluation results indicated a couple of selected successes in the region (Plate 1). Selected successes make up
potential candidates for scaling up climate-smart agricultural technologies and practices, and innovative approaches
notably, including:
i. Innovation platforms as a pillar for change: The successful establishment of innovation platforms across all
project countries was evident but have remained largely underdeveloped and not utilized to their full potential.
Platforms provided a framework for sharing knowledge on adaptation innovations to climate change, providing
a good entry point for technology dissemination in target areas across all project countries. The study showed
that the innovation platform model can offer the potential to organize stakeholders to address the objective of
improving the livelihood of their members. IPs, however, need a strong voice to demand the needed services
from service providers, negotiate and advocate for collective interests with the private sector and government.
The use of a participatory development communication (PDC) within IPs would greatly increase their
sustainability;
ii. Increased human and institutional capacity for stakeholders: The enhancement of capacity for diverse
stakeholder groups, including farmers, players in all segments of priority value chains, extension agents,
policymakers and researchers (All project countries) resulted in significant positive results such as increased
capacity towards awareness of CSA technologies and application of appropriate adaptation measures in their
communities. This highlights the need to prioritize linkages amongst farmer organizations, extension and
agricultural research;
iii. Integrated landscape approaches for natural resources management provided exponential benefits: The
pioneering of integrated land and water management for adaptation to climate variability and change improved
management of natural resources in specific target countries, for example, in Burkina Faso, the relative
reduction in sedimentation by up to 70%; and that in reduced runoff by up to 30% which helped improve the
farmers’ agricultural practices and livelihoods (AmREACCAF-Burkina Faso). This also increased storage of
water in the Boura reservoir through avoided sedimentation. Beyond water provision for household use, these
reservoirs serve as key food baskets for fisheries and irrigation for households;
iv. Integrated and diversified options offered opportunities to increase resilience and unlock the potential
for rural smallholder livelihoods: The ILWAC project improved implementation of innovative agronomic
interventions that substantially reduced the yield gap for millet for example the use of improved crop varieties
(drought tolerant and early maturing) resulted in a 10 fold yield increase in grain biomass (ENRACCASenegal). Additional strategies include soil amendments in the form of organic and inorganic fertilizer sources,
weed control practices as well as improved storage techniques (ISFM-Benin); Household enterprise
diversification with agroforestry tree species enhanced the resilience of smallholder communities with climatesmart benefits such as windbreaks, these modified the micro-climate of the area that enhanced food security and
revenue generation within target communities, increased farmer adaptive capacity and overall soil health attributes (ENRACCA- Senegal). 5. Women empowerment resulted in improved rural livelihoods: Improved gender dynamics regarding the roles,
activities and representativeness within the selected projects had a positive impact on women empowerment for all
project countries. There are numerous ways by which women were empowered e.g. conducting off-season
vegetable cultivation allowed women to fetch increased returns (3 times than the normal price) in the off-season
months. There were efforts to promote increased participation of women in the projects, offering opportunities to
freely express themselves, highlight their needs and specific experiences. However, participation of women in
leadership positions was generally low (less than 10%). In addition, women were able to benefit from the capacity
building provided by the project, and access technologies and inputs resulting in higher production and subsequent
incomes than before. Male-headed households were more likely to practice more CSA technologies by a factor of
about 1 compared to female headed households. There was evidence of better access to financial services and
training through village savings and loan associations, and gender empowerment. A key attribute of the assessed
projects was that for the most part, women farmers were not well organized into interest groups with the capacity to
promote their interests and engage in advocacy activities geared at influencing policy for their ultimate benefit.
This was a missed opportunity especially in the context of existing innovation platforms that needs concerted
efforts and strengthening.
6. More economic and social safety nets for smallholder livelihoods beyond ILWAC beneficiaries are needed:
ILWAC enhanced farmers’ access to climate-resilient and low-emission practices and technologies, including crop,
livestock, soil and water management options and energy saving technologies. ILWAC increased the number of CSA
practices implemented by three practices more compared to non-participation. Results further showed that education level is
associated with higher income. Higher value assets such as livestock did also significantly influenced income. ILWAC
increased significantly the value of assets to almost 90%; a factor attributable to additional assets that were distributed to
farmer groups such as the case of Gambia, Senegal and Sierra Leone. This study therefore confirms that more assets in
ILWAC supported households offered better livelihood options than those in the control group. Results further show that
male-headed households have a higher value of assets than female-headed households. On the overall, although participation
in ILWAC increased income by 19%, there remains room for further improvement amongst the ILWAC beneficiaries given
the lower differences in the economic domain for sustainable intensification exemplified before and after the ILWAC project
on Plate 2. Likewise, Plate 2 highlights that better options are needed in the social domain to ensure that ILWAC
beneficiaries can significantly gain from social dividends (e.g. strengthened farmer groups, collective action, and shared
labor). Given the highlighted successes among the ILWAC beneficiaries, efforts will be needed to scale these bright spots
beyond the ILWAC beneficiaries to wider geographical coverages.
7. There is need for concerted efforts towards supporting technical, financial, institutional and governance
needs within the target countries in order to make community livelihoods more resilient to climate change.
Despite the recorded successes there remains room for improvement in several institutional and governance realms.
Farmers in the project sites are faced by poor extension, with the ratio of government paid extension officers to that
of farmers being low, only 33% of the households have access to extension service. This has a negative impact on
the quality of extension services being offered and building adaptive capacity to deal with climate change.
A significant challenge remains in all project countries to get the technologies widely used due to the lack of a
suitable enabling environment among others — extension services, financial resources, infrastructure, risk
management and cross-sectoral linkages. Farmers are further constrained by having limited access to climatic
information. Effective research and innovation are also needed to continuously improve practices and technologies.
This calls for a policy recommendation where concerted efforts are needed to mobilize financial resources and
build the capacity of West African researchers, policy-makers and institutions to understand, carry out and use
good quality data towards informed decision making and scenario analyses (Also see evidence revealed by Plate
2).Enabling policy and institutional environment can provide the conditions and incentives for scaling out
Asymptomatic Malaria Infection and the Immune Response to the 2-Dose Ad26.ZEBOV, MVA-BN-Filo Ebola Vaccine Regimen in Adults and Children
Background
Malaria infection affects the immune response to some vaccines. As Ebola virus (EBOV) outbreaks have occurred mainly in malaria-endemic countries, we have assessed whether asymptomatic malaria affects immune responses to the 2-dose Ad26.ZEBOV, MVA-BN-Filo Ebola vaccine regimen.
Methods
In this sub-study of the EBOVAC-Salone Ebola vaccine trial in Sierra Leone, malaria microscopy was performed at the time of Ebola vaccination. Participants with symptomatic malaria were treated before vaccination. Ebola vaccine responses were assessed post-dose 1 (day 57) and post-dose 2 (day 78) by the EBOV glycoprotein FANG enzyme-linked immunosorbent assay (ELISA), and responses expressed as geometric mean concentrations (GMCs). Geometric mean ratios (GMRs) of the GMCs in malaria-positive versus malaria-negative participants were derived with 95% confidence intervals (CIs).
Results
A total of 587 participants were studied, comprising 188 adults (≥18 years) and 399 children (in age groups of 12–17, 4–11, and 1–3 years). Asymptomatic malaria was observed in 47.5% of adults and 51.5% of children on day 1. Post-dose 1, GMCs were lower in 1–3-year-old malaria-positive compared with malaria-negative children (age group–specific GMR, .56; 95% CI, .39–.81) but not in older age groups. Post-dose 2, there was no consistent effect of malaria infection across the different age groups but there was a trend toward a lower response (GMR, .82; 95% CI, .67–1.02).
Conclusions
The Ad26.ZEBOV, MVA-BN-Filo Ebola vaccine regimen is immunogenic in participants with asymptomatic malaria. Therefore, it is not necessary to screen for asymptomatic malaria infection prior to vaccination with this regimen
AfricaInteract : enabling research-to-policy dialogue for adaptation to climate change in Africa
West Africa’s vulnerability to climate change is related to a high regional reliance on climate-sensitive economic activities such as rain-fed agriculture, livestock rearing, fisheries and forestry. Socioeconomic vulnerability correlates with poor health conditions in the region. Some climate-sensitive diseases and disease vectors are discussed. Meanwhile the analysis reveals that the West African region is already suffering from health impacts of climate change. A cross-disciplinary research agenda needs to be developed to enhance understanding of the health effects of climate change in different eco-climatic settings within West African countries, linking meteorology, climatology, and other relevant sectors
AfricaInteract : enabling research-to-policy dialogue for adaptation to climate change in Africa
Because the people who are directly impacted by climate change are ‘local’, as such, adaptation strategies to increase resilience of vulnerable populations must also be ‘local’. This should be carried out within the context of urban climate change frameworks and dynamics. The scope of this report is to review climate change adaptation research and policy pertaining to the urban sector, including the
relationships between water resources and gender in the West African sub-region
AfricaInteract : enabling research-to-policy dialogue for adaptation to climate change in Africa
The impact of climate change is moderated by factors such as access to land, inputs, credit and markets. There is little mainstreaming of climate change policy into agricultural development policies. Barriers to implementation of policy include weak institutions, lack of political will and inadequate funding. Vulnerabilities and adaptation capacity of various agricultural systems, and their implications for agricultural and climate change policy, are reviewed. Although focusing on adaptation to climate change in agriculture, there is need for further research at various levels on both the mitigation and adaptation aspects of climate smart agriculture, their interactions and trade-offs