Climate Change Policies in 16 West African Countries: A Systematic Review of Adaptation with a Focus on Agriculture, Food Security, and Nutrition

Climate change strongly impacts the agricultural sector in West Africa, threatening food security and nutrition, particularly for populations with the least adaptive capacity. Little is known about national climate change policies in the region. This systematic review identifies and analyses climate change policy documents in all 16 West African countries: (1) What are the existing climate change adaptation policies publicly available? (2) Which topics are addressed? (3) How are agriculture and food security framed and addressed? Following PRISMA guidelines, PubMed and Google scholar as key databases were searched with an extensive grey literature search. Keywords for searches were combinations of “Africa”, “Climate Change”, and “National Policy/Plan/Strategy/Guideline”. Fifteen countries have at least one national policy document on climate change in the frame of our study. Nineteen policy documents covered seven key sectors (energy, agriculture, water resources, health, forestry, infrastructure, and education), and eight thematic areas (community resilience, disaster risk management, institutional development, industry development, research and development, policy making, economic investment, and partnerships/collaboration). At the intersection of these sectors/areas, effects of changing climate on countries/populations were evaluated and described. Climate change adaptation strategies emerged including development of local risk/disaster plans, micro-financing and insurance schemes (public or private), green energy, and development of community groups/farmers organizations. No clear trend emerged when analysing the adaptation options, however, climate change adaptation in the agriculture sector was almost always included. Analysing agriculture, nutrition, and food security, seven agricultural challenges were identified: The small scale of West African farming, information gaps, missing infrastructure, poor financing, weak farmer/community organizations, a shifting agricultural calendar, and deteriorating environmental ecology. They reflect barriers to adaptation especially for small-scale subsistence farmers with increased climate change vulnerabilities. The study has shown that most West African countries have climate change policies. Nevertheless, key questions remain unanswered, and demand for further research, e.g., on evaluating the implementation in the respective countries, persists.

Publicly accessible documents are defined as document free of charge in digital or print format, accessible through internet search or by request through in-country experts at the step of identifying the full text of policies. The policy documents were often written in multiple languages (including English), contained abstracts or executive summaries in English, and were catalogued or indexed in English.
Exclusion criteria were: (1) Not written by or in collaboration with country governments, (2) no policy relevance (international reports, UN communications, scientific publications), (3) not applied nationally, (4) not specific to CC, and (5) not available in full text (Figure 1). Exclusion criteria were: (1) Not written by or in collaboration with country governments, (2) no policy relevance (international reports, UN communications, scientific publications), (3) not applied nationally, (4) not specific to CC, and (5) not available in full text (Figure 1). Data were extracted from the finally included policy documents into a pre-defined data extraction sheet, covering topics as general characteristics, aims, integration into other policies, characterisation of CC and mitigation, linking of CC and agriculture including adaptation strategies, linking of CC and nutrition/food security, including adaptation strategies (Supplementary Materials  Table S1).
The extracted information was analysed by country, type of document, and subject of interest. The data were then synthesised based on key points emerging from the policy documents. The content of the data was then qualitatively analysed through overarching themes developed from the documents. Next, the technical guidelines for the national adaptation plan process of the UNFCCC

Ministries (n = 21)
Articles identified for full text screening (n = 54) Data were extracted from the finally included policy documents into a pre-defined data extraction sheet, covering topics as general characteristics, aims, integration into other policies, characterisation of CC and mitigation, linking of CC and agriculture including adaptation strategies, linking of CC and nutrition/food security, including adaptation strategies (Supplementary Materials Table S1).
The extracted information was analysed by country, type of document, and subject of interest. The data were then synthesised based on key points emerging from the policy documents. The content of the data was then qualitatively analysed through overarching themes developed from the documents. Next, the technical guidelines for the national adaptation plan process of the UNFCCC was used as framework for policy comparison, and lastly, a quality assessment of the policies was conducted [21].

Results
This section covers (Section 3) descriptive analysis with (Section 3.1) Searches and included documents (Section 3.2) key sectors, (Section 3.3) thematic areas and a (Section 3.4) comparative analysis with (Section 3.4.1) agricultural adaptation challenges, (Section 3.4.2) nutrition and food Security challenges, (Section 3.4.3) agriculture, nutrition, and food adaption solutions, and (Section 3.5) policy document comparison. Policy identification codes (PID) identify each policy document.

Searches and Document Inclusion
Searches initially retrieved 92,375 hits at the identification phase. Through screening of titles, abstracts, and summaries, 91 relevant hits were retained from all databases, then 35 duplicates were removed. Of the 47 documents identified for full text screening, 37 were eliminated based on the exclusion criteria. Eight of the 37 excluded articles were due to the inaccessibility of the full text of policies ( Figure 1, Table 2, Supplementary Materials Table S2). At the end of the search, the 19 final documents were derived from following sources: Twelve United Nations organization web bases (FAO, UNDP, UNFCCC), three from LSE and Grantham, three from government ministry websites, and one from Google Scholar ( Figure 1, Table 2). The 19 included policy documents [22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40] originated from 14 countries. Guinea and Senegal had no relevant policy documents publicly available in the scope of this search, Benin, Ghana, Liberia, Mali, and Nigeria had more than one (Table 2). All included documents described the country, the listed agencies involved for document development, and specified aims/objectives. Seventeen of 19 documents mentioned other relevant national documents (laws, policies, reports, programmes) which were connected/relevant. Thirteen policies explained the effects of CC and elaborated on key scientific concepts as CC mitigation. Thirteen documents gave full explanations of CC mitigation, further explaining CC adaptation. Documents were often structured on key sectors and/or thematic areas. Seven common key sectors were identified across the policies: Energy, agriculture, water resources, health, forestry, infrastructure, and education (Table 3); and eight thematic areas emerged from the policy documents: Community resilience, disaster risk management, institutional development, industry development, research and development, policy making, economic investment, and partnerships/collaboration. Lastly, adaptation strategies were described for the above key sectors (Table 3).

Key Sectors
(I) Energy was discussed with a focus on electricity, petroleum, and renewable energies.

Thematic Areas
Eight interconnected thematic areas were identified during the analysis of the policy documents. They were common amongst and throughout the documents, often utilised in combination with the seven key sectors (Table 3).
(i) Partnerships and collaboration were often used in preambles. Slogans and logos of partnering country ministries and organisations were mentioned. Most frequently, the United Nations Development Program (UNDP), the United Nations Framework Convention on Climate Change (UNFCCC), German International Cooperation (GIZ), the Embassy of Norway, and the Agency for Environment and Sustainable Development (AEDD) were mentioned. Continued partnership with these organisations was encouraged, emphasising building relations with surrounding countries, regional organisations, and regional groups. Public government agencies were encouraged to stimulate, motivate, and collaborate with private businesses/private sectors (PID: (v) Construction of resilient communities was a common subtopic across the documents, expressing the need for communities knowledgeable about CC effects. The first step was empowering communities to be agents of mitigation and to make use of adaptive strategies. Building resilient communities was also highlighted as essential for vulnerability reduction on a large scale: Resilient communities can stimulate more equitable social development (PID: BN1, BN2, GB1, GH1, LB1, LB2, ML1, ML3, ML4, MR1, NG1, NGA1, NGA2, TG1). (vi) Disaster risk management is highlighted as directly related to managing, reducing, averting, and warning against the risks faced by communities/populations. Less resilient communities would be more affected by climate related disasters, increasing the vulnerability of already vulnerable populations. Drought, heat induced wildfires, and management of important coastlines are considered to be in need of allocating funds, for adequate preparedness and response strategies (PID: BN2, IC1, GB1, GH1, GH2, LB2, ML2, ML3, NGA1, NGA2, TG1). (vii) Policy making revolved around promotion of all previously mentioned thematic areas on the political scene/at the policy making level. Fourteen documents state that political will makes a difference in motivating and advancing the creation of climate friendly policies (guidelines, programmes, plans, etc.). Political will and political promotion, along with governance, coordination, and integration, were also mentioned as essential at the implementation and financing stages of adopted CC policies (PID: BN1, BN2, BF1, IC1, GB1, GH1, GH2, LB1, LB2,  ML1, ML2, ML3, ML4, MR1, NG1, NGA1, NGA2, TG1). (viii) Economic investment was omnipresent. It was both an underlining factor in all key areas and cross-cutting throughout the thematic areas. This theme supports the allocation of adequate ministry budgets, which are described as increasing the possibilities of implementing proper CC adaptation measures. The implementation of adaptation measures would stimulate green industry development, nurturing green economy, and in turn fostering institutional development, partnership, and collaboration, stimulating further growth and economic revenue (PID: BN1, BN2, BF1, GB1, GH1, GH2, GNB1, LB1, LB2, ML1, ML2, ML3, ML4, MR1, NG1, NGA1, NGA2, TG1).
The key sectors and thematic areas in all policies were intertwined with discussions of the nation's development policies and aims, most often framed in the context of socioeconomic/poverty-reduction development, rural development, and sustainable development.

In Depth Analysis of Agriculture, Nutrition, and Food Security Adaptation
In addition to the key sectors/thematic areas, in depth examination of agriculture, nutrition, and food security adaptation within the general and sector-specific plans of the 19 policies yielded seven agricultural barriers.

Agricultural Adaptation Challenges
Agriculture was extensively discussed and interfaces with numerous thematic areas, with barriers and enabling factors. (1) Small scale farming, (2) information gaps, (3) lack of infrastructure, (4) insufficient finances, (5) weak organisation, (6) shifting agricultural calendar, and (7) ecological unsustainability were perceived as the most pressing barriers to agricultural sectors' CC adaptability.
Small scale farming is one of the largest barriers. Small farms are disproportionately affected by CC, also limiting adaptation potential. The Mali policy document (PID: ML2) states: " . . . the sectors most vulnerable to climate change are, in order, agriculture, health, fishing, energy, water resources, livestock, forest-wildlife, habitat, transportation, industry and education. Smallholder farmers, along with artisans, are the most vulnerable populations . . . " Farmers lack essential information for agriculture, such as weather/precipitation data and more advanced information, as new farming strategies. Farmers also lack up-to-date information on the shifting agricultural calendar, with enormous ramifications on the entire growing season. Ivory Coast's policy document states (PID: IC1) "The mismatch between weather calendars and growing seasons poses a real problem for agricultural production . . . " Lacking financial resources are also a barrier to agricultural adaptation. Policies pointed to low financial resources as a challenge at household level and on all levels of government (PID: NG1, NGA1, ML4. GB1). Farmers have limited resources to invest in adaptation, and governments have limited budgets to support farmers and essential adaptation steps such as infrastructural work (PID: GH1, ML4, GB1).
Farming communities are suffering from and contributing to deteriorating ecological structures of the land (PID ML2, NG1, GB1, GH1). Farming activities effect the lands' ecology through pollution, depletion, impoverishment of soil, water, and forest, through unsustainable, intensive, and growing exploitation (PID GH1). Mali illustrates this (PID: ML2) " . . . in Mali there is a significant degradation of soils, vegetation and terrestrial ecosystems. Soil degradation results from natural phenomena (water and wind erosion) accentuated by destructive agricultural practices. These practices are linked to the strong demographic pressure that reaches 2.4% of annual growth, and to the lack of improvement in agricultural productivity . . . " Weak levels of farmer organisations were highlighted as a barrier, as their existence enables the sharing of useful data for updating. Without farmer associations/community groups, it is a challenge to foster grassroots community movements and enact larger-scale changes within communities (PID: BF1).

Nutrition and Food Security Challenges
Food security (availability, access, utilization, and stability) is defined by the FAO as the situation in which "all people, at all times, have physical, social, and economic access to sufficient, safe, and nutritious food that meets their dietary needs and food preferences for an active and healthy life" [41][42][43]. Nourishment is a key factor, as food security is related to nutrition, and conversely, food insecurity to malnutrition (undernutrition and overnutrition) [44].
In Gambia's (PID: GB1), a more holistic approach entailed how CC will impact components of food security-availability, accessibility, and utilisation. CC will worsen the current food insecurity situation as quoted in (PID: GB1): "Only 18% of Gambian households are considered to be food secure while the national malnutrition prevalence rate of 9.9% verges on emergency level." This in combination with the "existing economic, environmental and health risks have translated into high levels of food and nutrition insecurity." Additionally, in Ghana's (PID: GH1), emphasis is on "Food security is a crucial issue. Ghana reduced hunger by nearly three-quarters between 1990 and 2004, but food security disparities affect the delivery of the country's development objectives." Although both documents (PID: GB1 and GH1) recognise the severity of food security, no action points were mentioned.
Guinea Bissau included a list of targeted actions, essential for adapting to the changing nutritional landscape and guaranteeing food security: "(i) Setting up of a national security stock (ii) Setting up of cereal banks (silos) by peasants to guarantee a food reserve in all regions (iii) setting up of an Early Warning System against risks (iv) Strengthening of sensitization campaigns about the importance of diversifying eating habits" (PID: GNB1).
In Guinea Bissau's (PID: GNB1), the food security concerns were not limited to rural households, but also urban/semi-urban settings: "The country has survived, at a painful cost for its populations, to cycles of chronic crises, characterized by a worsening of access to water for agricultural purposes, human and animal consumption; a marked fall in agricultural production, staple food items (rice in particular); a rise in costs of some foodstuff, particularly in urban and semi-urban centers, a deterioration in prices of cashew and cotton and an increase in food insecurity." Several policy documents, like Nigeria's (PID: NGA1), drew attention to inequalities "Climate change will significantly affect vulnerable groups because of a variety of factors, including low adaptive capacity, limited resources, and poverty." Women and farmers are highlighted as especially vulnerable to CC, due to their dependence on natural resources for their livelihoods (PID: GH1 and LB1).

Agriculture, Nutrition, and Food Security Adaptation Solutions
Although the agricultural sector faces challenges due to CC, the policies illustrate that there is also adaptation potential. This sector's ability to adapt is extremely important, as agriculture is linked to both the food security and economic stability of nations, as illustrated in Burkina Faso (PID: BF1): "Burkina Faso's economy is predominantly agricultural, . . . It is a subsistence agriculture based on food grains (sorghum, millet, maize) which alone occupy more than 88% of the planted area with average yields of around 850 kg/ha, dominated by small family farms of 3 to 6 ha on average." Although the rates of farming are high, production from small plots remains low related to certain non-efficient farming methods (PID: ML2). Increasing the challenges is a lack of information (environmental, weather, adaptation) (PID: IC1). Some governments offer a two-pronged approach through reinforced promotion campaigns and the use of climate-smart agriculture (CSA).
The use of established methods under the umbrella of CSA can increase agricultural efficiency and production, as stated in Benin (PID: BN2) "The adoption of climate-smart agriculture (CSA), which relies on irrigated agriculture, the valorisation of local seeds and endemic breeds, the search for new, more adapted varieties, reliable climate information and a national policy of land tenure security" is potentially an adaption solution.
Pairing CSA with population information/promotion are suggested in Mali (PID: ML1): (1) Strengthen access to information and sensitization of the rural population regarding the agro-climatic reference calendar for the planning of agricultural activities (time of ploughing and sowing, appropriate period of agricultural interventions, timing of the appearance of certain diseases . . . ). (2) Promote the use of meteorological information by farmers to improve agricultural production (support, information sessions). (3) Promote and strengthen the use of seasonal forecast data in agriculture (support, information sessions).
Lack of information is coupled with lack of access to information. Upstream of the access problem, is a communication, knowledge sharing, and knowledge dissemination problem at all levels of government. Ghana plans to resolve this through training/capacity building at the local level, including the media (PID: GH1): " . . . the challenge of translating complex climate science into messages that will resonate with the wider public. Here, the media has a crucial role to play in conveying "why climate change matters to me."" Although Ghana has taken steps for capacity-building at the district level, capacity-building within the local communities needs addressing.
The knowledge/information gap is mirrored by a resource gap: Few farmers and communities can make improvements to their farming and their agricultural strategies with limited financial resources or limited governmental funds. Implementation of publicly and privately-run financial mechanisms like micro-financing schemes are solutions, as in Mali (PID: ML2): "Many actions mentioned to build a green and climate change resilient economy require the population to make investments, due to their low financial capacity. It is therefore necessary to promote the development of financial services, particularly microfinance . . . " These solutions, paired with saving and insurance services, could enable populations to manage CC risks.
Lack or poor infrastructure poses further challenges: There is an infrastructural gap, in areas ranging from transport, like the construction of roads, to commerce, like cash crop storage facilities (PID: BN2, BF1). Infrastructural support can improve selling agricultural products throughout the year and improve access to local and international markets, and this is precisely why the Burkina Faso government is investing in the improvement of infrastructure in their adaptation efforts. Their policy states (PID: BF1): "The Government's efforts relate to the commercial production sectors (cotton, fruit and vegetables, hides and skins, meat, etc.), the improvement of road infrastructures, etc., which are likely to favor the competitiveness of Burkinabé products in regional and international markets." The definition of agricultural zoning is a further challenge: Some farming villages are expanding the boundaries of farmed lands with no regard to zoning rules and regulations as described in Guinea Bissau (PID: GNB1). Defining agricultural zones may minimise the multitude of problems arising from unplanned expansion, using toxic lands, plains prone to flooding, and unlawful use and occupation of pre-owned and private land.
Farmer organisations are a further solution mentioned, for example, in Gambia's (PID: GB1): "It is well recognized in Africa that secure land tenure and access rights are essential for enabling community-based adaptation, as well as harnessing any related mitigation co-benefits. The [policy] will initiate a process to identify and act upon key constraints to community-based adaptation, including land tenure and access rights." The ecological effects/footprint of agriculture, especially in combination with livestock and animal husbandry, are outlined at the beginning of the CC policies and further elaborated on in the National Communication of each country. Enumerated solutions to reduce greenhouse gas (GHG) and adapt the agriculture methods include, for example, in Mali (PID: ML2): "Soil fertilization of soils should be organized mainly using agro-ecological solutions (improved fallow, composting, manure, organic fertilizers, bio-pesticides, agroforestry, cultural techniques such as minimum tillage or plant cover, etc.), which are generally less expensive, more easily accessible, and more effective in the long term."

Policy Document Comparison
Using the Technical Guidelines for The National Adaptation Plan Process of the UNFCCC as a framework for comparison: (1) Laying the groundwork, (2) preparatory elements, (3) implementing strategy, and (4) reporting, monitoring, and review (Supplementary Materials Table S3), the following emerges [21]: Over a third of the documents analysed (PID: BF1, GB1, LB2, GH1, GNB1, NGA1, NGA2, TG1) followed each of the four steps, covering everything from initiating the process in multilateral collaboration to taking full stock of data gaps, information and possible hurdles of both the policy document drafting process, and of the research in their respective countries. The policy documents also analysed the weakness in adaptation to CC, and the possibilities for addressing them, and integrating further adaptation methods. Under the implementation strategy, these policy documents fulfilled all requirements, seamlessly crossing from discussion on the prioritisation of mainstreaming and integration of adaptation at the national level to promotion and coordination at regional and local levels. The last points addressed in these policy documents were elaborating, reporting, monitoring, and evaluation plans.
Policy documents from Ghana and Mali proved less developed in step 2-Preparatory elements and step 3-Implementation Strategy (PID: GH2, LB1, ML3, ML4) In step 3, most of the policy documents successfully prioritised climate change in the national planning and developed adaptation implementation strategies, but many did not push further in addressing the last two points. They were weak in demonstrating how their national adaptation plans have been or would be updated (PID: BN2, IC1, ML1 ML2, NG1).
Furthermore, Benin (PID: BN1) specifies a strategic plan to develop and enforce knowledge of human resource personnel on the subject of green development and climate resilience. The strategy points to a missing framework and structure for growing the pool of qualified persons in the public sector, the private sector, and civil society. The document elaborates an implementation, monitoring, and evaluation plan, an institutional framework, and a 5-year action plan.
Mauritania (PID:MR1) has a strategic plan for environment and CC in their education system. In addition to discussing its environmental, geographic, and ecological situation, this strategy details the 3 levels of the education system. This provides the institutional framework for research and the overall goal of the policy document: "change in attitudes and behaviours of current and future generations vis-à-vis environmental issues and sustainable development" through integration and education at all school levels.
Liberia (PID: LB1) has an action plan specifically focused on gender and climate change. The plan's purpose is to " . . . ensure that gender equality is mainstreamed into Liberia's climate change policies, programs and interventions" in order for both men and women to equally benefit from the nation's CC initiatives.

Comparing Structure and Quality of the Policy Documents
Comparing the quality of the policy documents, it is important to first note the difference in the types of documents analysed. In this publication, "policy document" was used as an umbrella term covering publicly available national plans, guidelines, programmes, and policies. Although different in their development processes, aims, and outcomes, these terms are often used inconsistently and interchangeably [45]. Only the inclusive search and analysis of all these types of policy documents, as we present here, give an appropriate overview of the current state of West African CC adaptation planning [46,47].
With the expected range of policy documents, the primary aim of comparison was (1) to use a defined process of development, including a comparison to the suggested four stages by UNFCCC, and (2) to adequately review and identify the CC vulnerabilities and adaptation opportunities in the country.
(1) The majority of documents, regardless if "plan, guideline, program, or policy" followed a process similar to UNFCCC's technical guidelines for the national adaptation plan: "(1) Laying the ground work, (2) Preparatory elements, (3) Implementing strategy and (4) Reporting, monitoring and review" [21]. Except for two, the policy documents started by defining the groundwork for various subjects to be addressed throughout the document. Next, the documents also established the nation's current state and identified information and data gaps. The policy documents addressed preparatory elements by recounting the countries' previous climate related efforts and highlighting difficulties ranging from barriers in the policy drafting process itself to difficulties in acquiring and utilizing essential research for CC related activities. The policy documents analysed adaptation strength and weaknesses for which developed strategies would be implemented. After touching on implementation, most of the documents engaged discussions on the prioritisation actions and mainstreaming and integration of adaptation. They proposed various plans and methods for the reporting, monitoring, and evaluation of adaptation measure of the prioritized actions. The policy documents were thorough in discussing and covering the key aspects of the four steps. The three documents with a different development approach also had independent goals. These documents were narrow in focus and aims, each addressing only one specific aspect/sector; human resources, education, and gender. Due to this focus, they bypassed the more general analysis aspects that all other policy documents address in steps 1 and 2. Although weak in their elaboration of the entire process, they were strong in identifying vulnerabilities and barriers, then outlining the opportunities for improvements.
(2) The second quality assessment of the policy documents was performed through qualitative content analysis using structured extraction tables to review the adaptation vulnerabilities and opportunities in the policy documents. At a second stage of the content analysis, an additional focus was placed on agriculture, nutrition, and food security. The analysis illustrated that although the type of policy documents varied, the vast majority had similar content, simply under differing structures. All but two of the three divergent documents, (PID: BN1) and (PID:MR1), adequately elaborated on the country's wholistic challenges and opportunities for adaptation. From this wholistic review, seven key sectors emerged as most relevant to changing climate. These seven key sectors also illustrate a consensus in the West African countries. These are the sectors commonly deemed most vulnerable to the effects of the changing climate. Therefore, they emerge as priorities for adaptation action, which could be best implemented through actions in the eight interconnected thematic areas.
A study published in 2015 "An overview of nationally appropriate mitigation actions (NAMAs) and national adaptation programs of action (NAPAs) in Africa" mirrors this finding [48]. Although the review had a focus on forestry, the publication's assessment of adaptation priority areas of both East Africa and West Africa yielded a combination of the key sectors and thematic areas also highlighted in our systematic review. The Kojwang review enumerated eleven "adaptation priority areas", which overlap all seven key sectors outlined in our review with the exception of the education and energy sectors. Although energy is not on the adaptation priority list, it is first on the reviews' mitigation actions list and a focal point for NAPA projects. The education sector was not mentioned at all in the 2015 review. The eleven "adaptation priority areas" enumerated in the Kojwang review overlap some of the eight thematic areas identified in our review, except for economic investment, partnerships, and the development centred thematic areas. Research and development, institutional development, and industry development were not mentioned in the 2015 review. However, this is not surprising, as the NAMAs and NAPAs are more homogeneous than the array of policy documents our systematic review identified. This shows that outside the frame of NAPAs and NAMAs, West African countries have developed an array of policy relevant documents to address a growing variety of sectors and areas. Another difference between the two studies was the 2015 study finding that most projects within the NAPAs are for energy, early warning systems, disaster reduction, coastal protection, and food security. Food security was not found to take centre stage across the policy documents of our systematic review.

Possibilities for Integrated Adaptation
The adaption actions, solutions, and plans in the 19 national CC policy documents of this systematic review can be analysed along the lines of previously defined eight thematic areas. The proposed actions under the Disaster and Risk Management theme were focused on agriculture strategies management and water systems management. The agricultural strategies emphasised both an adaptive strategies and risk hedging methods: Diversification of crops, selection of crops based on durability, selection of crop variety based on maturation time, introduction of modified seeds based on better growth patterns, lower water requirement, and disease resistance (PID: ML2). Water system adaptation plans in the policies ranged from the creation of man-powered irrigation systems, to the use of traditional planting and bordering methods such as Zai and Half-Moon technique for increased water retention, methods supported by literature on CC and adaptation [49]. Proposed actions for water management included creating micro-dams, small dykes, and water reserves adjacent to agricultural fields. Field-adjacent water reserves have a twofold purpose, (1) as a convenient source of water in the middle of agricultural fields, and (2) serving as a drainage system in case of flooding, limiting the inundation of planted fields [50,51]. All this would preferably be performed through a participatory, integrated watershed management approach, insuring thorough analysis of the interrelation between the use of multiple methods and their impact on other sectors (PID: GB1).
The continuous development of agricultural and water management systems should be supported by industry, research, and development. Necessary research and development to better confront the changing climate and weather variables begins with the use of natural resources. The development of renewable energies, especially solar energy, not only for countries' electric grid, dominated by city use, but also for powering of equipment in rural sectors [52,53]. Development and promotion of conservative farming methods could contribute to reversing the trend of spreading and sprawling of land use for farming [54]. Ecosystem rebuilding and conservation is a subcategory of research and development, incorporating adaptive methods such as agro-forestry [55,56]. This serves to integrate agriculture and forestry, benefiting adaptation and mitigation [57,58]. This thematic area also discusses research on climate resilient ecosystems, sustainability, and energy sources. Lastly, this thematic area emphasises the inclusion of concerned community members, such as farmer's/women's groups at the centre of research and development, as they are key to the adoption and implementation of all relevant results [59,60].
Literature shows that concerned community members should also be implicated directly in the adaptation planning and activities of governing bodies [61,62]. This is necessary for building community resilience. Community resilience activities branch from integrating CC in the education system, both for teachers and students, to creating community empowerment groups [63]. These policies support strengthening social support networks, groups, and associations, since they also serve as access points for providing the population with information and tools for adaptation and protection of individuals and communities [64]. The introduction of integrated farming, alternative livelihoods systems, and income diversification are also adaptation initiatives, increasing households' and communities' resilience [50,65].
Initiation, promotion, and subsistence of the above-mentioned activities come from a new base of workers, trained in climate sciences through institutional development. These would be agents trained for capacity building purposes, at all levels of country organisation. The documents acknowledged the creation and or expansion of extension services as favourable to bridge the gap between science and research, its understanding, and application locally [63]. A trained green workforce would be essential in relaying and disseminating accurate climate related information, while simultaneously engaging in trainings and workshops with community members, making the community its own agents of change [66].
In looking at the policies, at the higher levels of government, several adaptation related actions could be mandated, grouped mainly in two areas; first, expanding governmental services, and second, strengthening government systems. For this, national policy documents need to lead to action points and implementable initiatives; followed by the development of climate actions/projects at regional and local levels. An advisory board could be set up to monitor the development of adequate and relevant guidelines, regulations, and projects. Agro-advisory boards for example could support the production of reliable weather-based crop focused information (PID: GB1). Such a board could also advise on new measures, such as establishing local weather warning systems and scaling up early warning systems for events such as floods, droughts, or famines. Lastly, these agro-advisory boards could back the promotion of agro-business both in the public and private sector (PID: ML2). Partnerships, in the private and public sectors, backing and funding green adaptation programmes are in the strategic plan of most policies [63]. Other adaptation-focused plans include the development of small-scale banking and agro-banking, primarily for implementation at local levels (PID: BN2). This is linked to a concept of weather-based insurance schemes and programmes, run either by the governments or in collaboration with international organisations (PID: BN2, GB1, GH1, ML2). The creation of national food storage facilities is another possible economic activity, including food insurance schemes.

Climate Change and Development
The relation between CC and development is both parallel and intertwined. This was evident in the policies discussion of socioeconomic/poverty-reduction development, rural development, and sustainable development. The effects of the changing climate have the potential to set the national development back in many of the West African countries, effectively undoing much of the progress across sectors from effecting meningitis epidemics in the health sector, destroying water systems in the infrastructure sectors, to pushing women, farming communities, and all other groups reliant on natural resources further into poverty [67][68][69]. As a result, discussions have been sparked on the interconnectivity of development and CC efforts. This intertwined connection becomes even more difficult when discussing the prioritization and funding of activities.
Though some policy documents have stated that partial funding has already been secured for their intended adaptation activities, most required significant investment to launch and upscale adaptation plans and projects. The allocation of government budget lines in West African countries are proving insufficient, therefore much funding must come from the private sector, regional, international, and non-governmental organisations and other partners [70,71]. As global funding streams expand and shift to include the allocation of funds for climate oriented, climate sensitive, and specific activities and catastrophes, there is a shift away from some previously funded development-based activities [72]. Furthermore, there is growing confusion on the differentiation of these activities, pushing the need to find a way to determine which activities are climate resilience and management, which fall under development. One of the proposed methods for differentiating development and CC activities are the use of indicators [73,74]. We would argue that although the elaboration of development and CC (mitigation and adaptation) indicators can provide a platform to sort and distinguish the two, it is more important to identify areas in which integrated approaches can be utilized and capitalized [75]. Integration would increase efficiency of results and create more efficient use of currently limited resources.
One of the next steps for West African countries will be to increase their access to adaptation funds. Such resources would allow them to address both urgent/immediate needs while continuing to monitor, evaluate, and improve current efforts and initiatives. The acquisition of funds would drive the West African region forward in its development and climate change adaptation agenda.

Limitations of the Systematic Review
The first limitation was the accessibility of CC policies. No comprehensive climate change policy data base exists for African countries. The London School of Economics and Political Science and The Grantham Research Institute on Climate Change and the Environment established a platform bridging the public to environment decrees, laws, and policies, but the database for African countries is not yet comprehensive, up-to-date, or linked to the policy texts. Searching for policy documents directly on national ministry websites proved equally limiting. Of the 48 Ministry web sites searched, only 34 were functional. The remaining 14 websites were dysfunctional in a variety of ways: From disconnected web addresses to websites indefinitely under construction. Of the functioning websites, few provided access to the policy text.
As a result, most of the policies were identified through extensive grey literature source documents, in a two-step process of (1) identifying existing policies and (2) locating a copy of the full text. Had the full text of all policy documents been accessible, the final included policies would have increased by nine, totalling 24. The search for the missing nine full text documents was extended to include the networks of three experts who were also unable to locate the policies.
The inaccessibility of policies constitutes a barrier for researchers, IGO, NGOs, and for citizens. This is an overarching difficulty in many sectors from health to economics to CC, in most low-middle income countries [76]. The public availability of policies can increase general citizen knowledge and understanding of government goals and priorities [77], encouraging public engagement, fostering transparency and stimulating accountability [78,79]. The availability and accessibility of such documents can also facilitate the monitoring of activities, not only within and between national ministries, but for all agencies interested in tracking CC adaptation progress of a country [80,81].
Lastly, this review excluded National Communications (NC), National Adaptation Plans (NAP), NAPA and NAMA for which LDCs were provided UNFCCC funding and training. Although this systematic review focused on documents drafted outside this frame, it is important to acknowledge their use as source documents in this review. All the selected West African countries have as of 2019 drafted and submitted an Initial NC and a First NC. Fourteen have submitted a Second NC, twelve a Third NC, and two have a Fourth NC. Thirteen of the sixteen countries have a NAP, four have a NAPA, four have a NAMA. A 2015 review by [48] already provides an overview of the NAMAs and NAPAs in Africa, therefore they were not re-analysed in this review. Instead, the NAP drafting guidelines were used as a framework for comparison, and the 2015 review provided for adaptation action and priority comparison. The policies in this systematic review proved more wide ranging in the scope of subjects and more diverse in the proposed areas of adaptation options, as they were not limited by a prescribed standardized format, framework, and process.

Conclusions
In conclusion, the systematic literature review aimed to answer the following three questions: (1) What are the existing CC adaptation policies publicly available?
The systematic review of CC policies in West Africa identified 19 policies in 12 countries. Guinea had no policies in the frame of this review, Cape Verde, Sierra Leone, and Senegal had at least one policy in the frame of the review, but the full text was not publicly available and could not be located.
The policy documents effectively described the national situation, the agencies involved in drafting the document, and the aims/vision of the policies. The documents (17 of the 19) also strived to link and integrate other relevant national reports, laws, programmes, and policies. This is one of the initial steps in policy integration, which 13 policy documents discussed or stated as a goal.
The policy documents converged on seven key sectors: Energy, agriculture, water resources, health, forestry, infrastructure, and education. The policy documents discussed these key sectors in the context of eight thematic areas: Community resilience, disaster risk management, institutional development, industry development, research and development, policy making, economic investment, and partnerships/collaboration.
(3) How are agriculture, food security, and nutrition framed and addressed?
Nutrition and food security challenges and adaptation were not highlighted as key points. They were seldom mentioned as an independent goal and most often under the umbrella of other sectors or areas, such as health, agriculture, and climate resilient systems.
Agriculture was a focal point of the policy documents. It was highlighted as a top three GHG emitting source in West African countries. The agricultural sector was identified as a key sector and as one of the most vulnerable sectors to CC, but it was also highlighted as a sector with immense possibilities and potential for adaptation.
The primary challenges of CC agricultural adaptation were: The small scale of farming, gap of information, lack of infrastructure, insufficient finances, weak organisation, a shifting agricultural calendar, and ecological unsustainability. The enumerated solutions ranged greatly, from solidification of farmer groups, and training of climate community agents, to the use of modified seeds, weather-based insurances, and agro-forestry.
There was also a plethora of proposed adaptation solutions for the other six key sectors, ranging from participatory integrated watershed management approaches, engagement of public-private partnerships in micro-financing and insurance schemes, construction of food-bank infrastructures, integration of CC in school curricula, training of a green human resource workforce, to serve as agents of change in communities, and also to fill a multitude of new jobs in growing renewable and green energy economies.
In addition to addressing the research questions, this systematic review compared national climate change policies using the PRISMA and UNFCCC framework, determining where on the Climate Change policy development spectrum 16 West African countries lie. This manuscript is a first in the expanding realm and intersection of climate change, policy, and health, creating a scientific bridge (between well-established methods and the newly emerging subject of climate adaptation) into new bodies of knowledge.
The results of the review can inform the policy process in the West African countries. It clearly underlines the variability of the policies, and this is probably reflected in any implementation process.
Lastly, the added value of the review is the more scientific approach for document analysis, searching and analysing in a prescribed way with the methodology of systematic reviews, making the analysis and its key conclusions stronger.
Next steps for research would be analysing the implementation of the identified CC policies. First, examining whether adaptation plans elaborated in these policies, were budgeted, developed, and implemented. Second, analysing the effect on agricultural, nutritional, and food security of the countries and their citizens.
Supplementary Materials: The following are available online at http://www.mdpi.com/1660-4601/17/23/8897/s1, Table S1: Extract of evidence table. Table S2: List of relevant policies whose full text could not be identified. Table S3: Summary of the steps for the technical guidelines for the NAP process.