1. Introduction
Climate change is considered a potentially serious environmental and economic issue [
1]. A Report of the Intergovernmental Panel on Climate Change (IPCC) [
2] indicated that risks arising from climate change could be made worse by the interactions between hazards, vulnerability, and exposure (people, assets, or ecosystems). Continued changes in the physical and bio-geochemical environment may influence variables such as sea level, sea currents, temperature, and wave action, increasing the frequency and intensity of severe weather, which, in turn, could modify the provision of ecosystem services, and thereby the well-being of people who rely on these services [
3]. Worldwide, many countries could be affected by the consequences of climate change in all sectors of development [
4,
5].
According to IPCC reports, Egypt is particularly vulnerable to climate change, due to its geographical position and its dependence on climate-sensitive economic sectors [
6]. A rise in sea level could affect the living conditions of millions of people, especially those living in the Nile Delta and the southeast, meaning that the populations of this part of the coastal zone could be exposed to economic, social, and/or health risks [
7]. It has also been suggested that Egypt’s precipitation may decrease due to climate change, with some modelling indicating an annual decline of up to 5.2% by 2030, 7.6% by 2050, and 13.2% by 2100 [
8]. Therefore, it would be prudent for Egypt to identify adaptive strategies to manage climate risks in vulnerable areas [
9].
The agricultural sector is considered to be vulnerable to climate change [
10]. Nelson (2009) [
11] stated that agriculture contributes about 13.5% of annual greenhouse gas (GHG) emissions, with forestry contributing an additional 19%, compared with 13.1% from transportation. The agriculture sector can also contribute to climate change mitigation, through soil and land use management, carbon sequestration, and biomass production. Several studies have produced modelling projections which have indicated the potential for adverse impacts from climate change on agricultural productivity, capital income, poverty levels, and loss of resources [
12,
13,
14].
In Egypt, a large portion of arable land located in the Nile Delta is particularly sensitive to increased sea level and precipitation, and to temperature change [
15]. Authors have postulated that this could affect farming activities in the Nile Delta in various ways: (i) a decline in agricultural productivity by up to 30–40%, and consequent reduction in farm net revenue [
16]; (ii) increasing consumption of water for crops; (iii) soil degradation; (iv) lost agricultural lands; and (v) movement of people from vulnerable areas, especially the Northern Nile Delta, to other areas [
17]. Kheir et al. (2019) [
18] modeled the impact of climate change scenarios on wheat production in the Northern Nile Delta, their outputs indicated that a mean annual temperature rise of 1–4 °C decreased wheat yield by 17.6%. Moreover, areas available for wheat cultivation could be reduced by 0.07, 52.9, and 60.8%, under modeled sea level rise scenarios of 0.5, 1.5, and 2.0 m, respectively.
Another study, conducted by Fawaz and Soliman (2016) [
19] indicated that a temperature increase of approximately 2°C during the period across the 2012–13 season to the 2014–15 season caused production reductions of 18%, 18%, and 11%, for barley, maize, and rice, respectively, while there was a 17% increase in cotton production.
Agricultural researchers are working globally to mitigate and adapt to these potential effects, in order to maintain productivity within a finite natural resource basis [
20]. Agricultural adaptation to climate change requires modification of agricultural systems to minimize losses or to capitalize on opportunities [
21]. The effectiveness of adaptation depends on adjustments in social, economic, and ecological systems occurring across a range of micro- and macrolevels, especially in terms of farm production practices, technological developments, farm financial management, government programs, and insurance [
22,
23,
24]. It has been suggested that, to sustain their livelihoods in this climate change context, farmers across the world need to continuously make adjustments to their farms’ physical capital, productive capacity, and output [
25]. In the Egyptian context, it has been suggested that agricultural adaptation is important for agriculture, especially in the Nile Delta, to achieve food security and sustainable water management [
26].
Literature on adaptation has presented different adaptation strategy options, including minimizing tillage, changing planting dates, the development and promotion of new crop varieties, increased use of water and soil conservation techniques, crop diversification, use of subsidies and taxes, improvement in agricultural markets, changed use of capital and labor, shading and sheltering/tree planting, mixed crop–livestock farming systems, and diversification from farm to nonfarm activities [
27,
28,
29,
30,
31,
32,
33]. Since 2010, the Egyptian government has provided support to facilitate change by building and managing infrastructure, allocating supplies, and coordinating with national private entities and international donors to implement adaptation measures in the Nile Delta, such as developing more heat- and salinity-resistant/tolerant crops, improving irrigation systems, and supporting crop insurance, crop diversification, and environment friendly practices, including a Good Agricultural Practices system [
34].
To foster climate change adaptation, it is important to gather information on the constraints that influence the adoption of adaptation options at the microlevel [
33,
34]. It has been noted in previous studies that the adoption of adaptation measures was related to socioeconomic characteristics, access to formal and informal credit, access to extension services, limited access to services, poor regional infrastructure, insufficient funding, and the high cost of production [
35,
36,
37,
38,
39,
40,
41]. To assist farmers address these barriers, and to promote the employment of long-term adaptation options, Menike and Arachchi (2016) [
42] offered the opinion that governments should introduce reforms that promote economic growth, technology, information and skills, infrastructure, and institutions.
There is therefore a demand for strong extension agencies, which could play key roles in addressing climate issues, to the point where they were able to bolster farmers’ coping capacities. Agricultural extension has a key role to play in changing the knowledge, attitudes, and skills of the people [
43]. A series of embedded communicative interventions could be planned and organized by agricultural extension personnel, to advise farmers on climate change adaptation measures [
44]. Furthermore, agricultural extension is involved as a brokerage for awareness creation and knowledge sharing, among different participants in the agricultural innovation system. Such interventions, agricultural extension could build the capacity for resilience in vulnerable people, with the help of suitable government policies [
45].
The administration of public Egyptian agricultural extension has a complex structure. At the national level, extension services involve the Central Administration of Agricultural Extension Services (CAAES), working in a close relationship with the Agricultural Research Center (ARC). Extension services are still supply driven in different scientific disciplines, lacking interdisciplinary exchanges among staff [
46]. At Governorate level, there are extension departments in the agriculture directorates in (26) governorates. Subject matter specialists (SMSs) work in the extension departments at district level, to provide information and support concerning new technologies to the village extension workers (VEWs). The role of the VEWs at the village level has been to receive and simplify information received from SMSs, provide convincing information to farmers, and either resolve farmers’ associated problems, or provide feedback to SMSs and ARC researchers, who will then try to find solutions [
47].
Most research conducted on climate change in Egypt has followed a top-down approach, to assess the consequences of climate change on the different areas of agriculture and other sectors [
15,
16,
48,
49], or to test the efficiency of different adaptation measures applied by local farming systems [
17,
26]. Little research has been conducted on how farmers in the Nile Delta conceptualize climate-related risk, or how these farmers address risk through the adoption of recommended strategies (bottom-up approach). It has therefore been considered important to clearly understand both the farmers’ current situation, when preparing them to address the issue of climate change, and the role of extension work in this situation. The current study has therefore tried to provide further insights, by filling the research gap on the potential role of extension institutions here, and by identifying procedures needed at the policy level to raise and convert the potential extension role into action on the ground. The objectives of the current study were as follows.
To explore awareness levels of the farmers and extension workers regarding climate change, and thereby identify their capacity to undertake appropriate climate change adaptation strategies.
To suggest procedures for addressing negative impacts from climate changes, through the collaboration of different stakeholders from all levels.
2. Methodology
2.1. Description of the Study Area
The Nile Delta Region is located in the north of Egypt where the Nile River spreads out and drains into the Mediterranean Sea. The Nile Delta Region has an area of approximately 22,000 km
2, and covers 240 km of the Mediterranean coastline, from Alexandria in the west to Port Said in the east. It is the richest agricultural area in the country and comprises 63% of Egypt’s productive land [
50]. Administratively, the Nile Delta Region includes of eight governorates—El-Beheira, Kafr-El-Sheikh, Al-Dekhalia, Damietta, Al Sharqiya, Al-Qalyubia, Al-Menufia, and Al-Gharbia—as shown in
Figure 1, and lies between 31.01° E and 30.85° N. Its mean annual rainfall is estimated at 100–200 mm, mostly falling in the winter. In summer, the temperature is normally in the range of 32 to 38 °C, rarely reaching 45 °C, in July and August. In winter, the temperature is normally in the range of 9 °C at night to 19 °C in the daytime, with quite high relative humidity [
51].
Most of the farms in the Nile Delta are small, with an average size of 3–4 feddan (~1.5 hectares). Cropping during the summer season includes maize, rice, cotton, cucumber, tomatoes, potato, squash, and watermelon, while in winter, the main crops grown are wheat, Egyptian clover, green pea, cabbage, carrot, barley, horsebean, sugar beet, spinach, and Tepary bean. Some vegetables and fruits grow in the study area year-round, including guava, strawberry, apple, white mulberry, sweet orange, bitter orange, pomegranate, banana, date, and peach [
50]. Surface irrigation from the River Nile is used in the region. Water is distributed to different locations by a network of canals and is then drained away by separate canals [
52]. The soil in the northern and central parts of the Nile Delta is clayey to silty-clay, while sandy soils are also present, with limited distribution in the eastern and western parts of the region [
53].
It has been reported that climate change manifestations already being experienced in the region include rising sea levels and eroding coasts, increasing soil salinity, decreased Nile flow, increasing summer temperature, changed rainfall patterns, land degradation in coastal areas, changes in weed species and distribution, pest and disease pressures, and declining crop productivity [
19].
2.2. Conceptual Framework
A suggested conceptual framework to facilitate the role of extension work regarding climate change adaptation is shown in
Figure 2. This framework suggests that promotion of the adaptive capacity of extension when confronting climate change can be enhanced through three cumulative factors. The first factor is the existing levels of awareness of farmers and extension workers. The second factor includes the adoption of adaptation measures recommended by extension in Egypt. The third factor focuses on the procedures required for climate change adaptation at the micro-, meso-, and macrolevels.
Using this model as the basis, addressing the potential effects of climate change occurs through a two-stage process: (1) perceiving the effects of climate change on agricultural production and (2) making a decision whether to adopt a particular measure or not [
55]. Ajala et al. (2018) [
56] pointed out that analyzing awareness is a key way to understand how farmers sustainably respond to climate change impacts. Consequently, extension institutions utilize the empirical evidence of farmers’ awareness to design programs and campaigns designed to enable farmers to make informed decision on adaptation and mitigation strategy application [
57]. In a similar vein, the knowledge and skills of extension personnel form the competencies needed to facilitate action in a wide variety of situations [
58].
The need for competency in agricultural extension is a fundamental prerequisite for climate change oriented extension services [
59]. Accordingly, Afful (2016) [
60] stated that the low level of awareness and lack of climate change-related competencies among extension workers had a negative effect on supporting farmers to cope with the risks of climate change. Conceptually, the overall adaptive capacity of extension is a function of extension workers’ and farmers’ perceptions of climate change.
Other studies have found that adoption of climate change measures was conceptualized by the extent to which the farmers effectively and continuously use them in farming [
61], and that decisions on selection and implementation of specific measures were influenced by various cognitive, behavioral, financial, physical, and institutional barriers [
62]. To foster adoption of climate change adaptation strategies, Fagariba et al. (2018) [
63] indicated the importance of investigating adaptation strategies implemented by farmers, the constraints impeding farmers’ efforts to cope, attempts to determine the implementation gap to be covered by extension institutions, and efforts or policies needed from other stakeholders.
To promote timely and appropriate adaptation, the government has formulated microlevel procedures, which take into consideration regular assessments of climate change and its impacts. The procedures also support identification of suitable measures to be implemented at the microlevel, based on the latest scientific findings, and take account of the capacity of extension at the mesolevel to provide services that are more accessible for small-scale farmers [
64].
By analyzing these three factors, this paper can contribute to the dialogue on developing extension institutions, on identifying potential interventions needed to meet adaptation needs, and on establishing procedures required to reduce vulnerability to climate change effects.
2.3. Research Design
A descriptive research methodology, using a survey approach, was designed to illustrate the roles of the different stakeholders in adaptation to climate change. Structured interviews (n = 792) were conducted between January and March 2017 to collect quantitative data. In addition, a mixture of qualitative methods was used, including two focus group discussions (n = 19), and a workshop (n = 59).
2.4. Study Sample
The survey was completed at four levels of representation:
At the local (village) level, involving farmers in the Kafr-El-Sheikh and El-Beheira governorates in the North Delta region.
At the district level, involving extension agents in the two governorates.
At the governorate level, involving directors general of extension in the Nile Delta Region governorates.
At the national level, involving chief administrators at the CAAES, and at the Ministry of Agriculture and Land Reclamation (MALR).
At the local level, farmers were selected using a multistage procedure. In the first stage, two governorates (Kafr-El-Sheikh and El-Beheira) were selected from the eight in the study area, on the basis that they have been reported as those most vulnerable to climate change effects [
13,
15]. Four villages were then randomly-selected from each of the two selected governorates: Nekla, Arimoon, Sunhor, and Bsentway from the El-Beheira governorate and El-Khadmia, Arimoon, El-Mothalth, and El-Qarn from the Kafr-El-Sheikh governorate. In the third stage, 792 farmers from the two governorates, representing approximately 10% of the target population, were selected, by employing a stratified, random sample technique.
2.5. Data Collection Methods
A questionnaire, whose content validity was assessed by a team of experts at the Department of Agricultural Extension and Rural Society, King Saud University, Saudi Arabia, was used as the main instrument for primary data collection. The questionnaire was divided into three sections; socioeconomic attributes; farmers’ awareness of climate change; and farmers’ adoption of adaptation measures. The index of adaptation measures consisted of 15 strategies included in Egypt’s national plan for climate change adaptation (UNDP, 2011). According to this report, the strategies are long-term and have been practiced over an extended period. A farmer’s awareness of climate change reflected his/her perception about changing temperature and/or rainfall, and was assigned one point for aware and zero for unaware. In the case of awareness, the farmer was asked about information sources, observed adverse effects, and adoption of adaptation measures.
The authors listed adaptation measures in the questionnaire, and farmers were able to select any options they had adopted to counter perceived climate change effects, with a value of one assigned for adopters, and zero for nonadopters. The questionnaire’s content validity was assessed by a team of experts at the Department of Agricultural Extension and Rural Society, King Saud University, Saudi Arabia. Prior to this, a pilot study was conducted in the study area with the collaboration of 30 farmers. The aim of the pilot study had been to ensure that each question was appropriate and understandable by the farmers.
The questionnaire’s reliability was assessed using Cronbach’s alpha. A value of 0.89 indicated high reliability and internal consistency in the varied domains for the questionnaire. After testing the questionnaire for validity and reliability, data were collected by conducting personal interviews. The data from the completed questionnaires were coded, and then entered for analysis with SPSS program version 22.
At the district level, all extension workers in the governorates of Kafr-El-Sheikh and El-Beheira were invited to attend a workshop. Fifty-nine extension workers attended, representing 71.6% of the total available from the two governorates (30 from Kafr-El-Sheikh and 29 from El-Beheira). The workshop aimed to explore their level of knowledge about the adverse effects of climate change, and services currently provided on the subject, and to explore the climate change challenges faced by the farmers. The authors have summarized the main results from the workshop in this paper, to facilitate discussion of the data and to help verify the preliminary results from the farmers’ interviews. Feedback at the workshop was used to increase research validity.
At the governorate level, one focus group discussion (FGD), whose aim was to identify the procedures and plans suggested to deal with climate change, was conducted. All 13 directors of extension working at the Delta Nile governorates were invited, with eight accepting the invitation and attending the FGD. At the national level, one FGD was designed and implemented, with all 11 chiefs of administrations at CAAES, to discuss the vulnerability of the agricultural sector to climate change effects, and the plans suggested for adaptation. The duration of each FGD was around one hour, on average, and then data reduction methods and thematic analyses were used to summarize the key findings [
65].
2.6. Data Analysis
Statistical tools were applied to analyze the data, and the results have been developed in the form of frequencies, means, and standard deviations. We also used inferential analysis to explore factors affecting awareness and adoption, and a chi-square test (Pearson’s chi-squared test) to determine the relationship between farmers’ awareness of climate change and their socioeconomic characteristics. A probit model was employed to investigate the determinants of farmers’ adoption of on-farm adaptation strategies.
A binary logistics regression model was employed, and the allocated independent variables included those hypothesized to influence the adoption of adaptation measures. The list of explanatory variables used in the model was obtained from previous studies, and from the authors’ knowledge of the aspects studied, described in
Table 1.
The model for the probit regression is specified as shown in Equation (1):
where 0 refers to an individual not adopting adaptation measures and
is the 0–1 outcome, with 1 corresponding to an individual adopting the particular adaptation measure; X1 and Xn correspond to sets of independent factors,
= the intercept of the function and β1–βn are its coefficients,
is the error term, which is assumed to follow a standard normal distribution with a mean of zero and variance of one.
The regression equation can be stated as shown in Equation (2):
where: X1 = age; X2 = education; X3 = farming experience; X4 = farm size; X5 = diversity of farming activities; X6 = on-farm demonstrations attended; X7 = extension meetings attended; X8 = extension visits; and X9 = WUA membership.
4. Conclusions
According to literature, climate change is seen as undermining agricultural production in Egypt. The current study has tried to give insights about the current situation regarding farmers’ awareness of climate change issues. Results indicated that 48.1% of the respondents had awareness of climate change. This means that extension workers should still discuss climate change with unaware farmers, and influence farmers’ abilities to observe and perceive the climate change effects.
Data on farmers’ adoption of adaptation strategies to cope with the effects of climate change in the study area indicated that 49.6% of the respondents had a low level of adoption.
Data suggested that the farmers’ education levels had a significant effect on how they perceived the issue and were able to adopt innovative adaptation practices. Promoting knowledge and skills development in the farmers was seen as important, as education could be a catalyst for the perception of risks and responding effectively to changes.
The impact of extension services on adoption of climate change adaptation was neither effective nor sufficient, even though the extension workers are quite aware of the issue of climate change and its associated impacts. Effectiveness could be strengthened if the extension focused on demonstrations and farmer field schools instead of on print media and extension meetings. The probit model also indicated that determinants of the use of adaptation measures included education level, farm size, diversity of production, and membership of a WUA. This implied that improved adoption of adaptation practices would need physical, social, and knowledge interventions.
As the government is a major stakeholder in environmental sustainability issues, climate change adaptation strategies could be improved significantly if extension was supported to train farmers on recommended adaptable strategies in the study area. These findings have tried to fill the gap concerning required procedures to be implemented to strengthen the role of extension. In this context, the study recommends the action plan suggested by the chiefs of administrations at CAAES. The action plan concluded that climate change was an issue threatening multiple negative impacts on farmers and required an integrated approach. At the microlevel, the emphasis should be on enhancing farmer capacity through mitigating and adaptive practices. At the mesolevel, strengthened capacity of extension institutions and further investment in research and development was also seen as being required. At the national level, policies should support sustainable productivity growth, in combination with adaptation and mitigation efforts.
Addressing the impacts of climate change is not only an existential issue but is also an opportunity to move toward sustainable agriculture in the study area, to achieve the goal of having sustainable communities.