A comprehensive study has been undertaken encompassing Coastal, Haor and Char regions of Bangladesh (Figure 1). The coastal regions of Khulna, Barisal, and Chittagong Divisions are at a high risk due to their low-lying terrain, close proximity to the Bay of Bengal, and susceptibility to cyclones, storm surges, sea-level rise, and saline intrusion. These factors result in extensive flooding and significant damage to infrastructure and agriculture. The Haor Areas in the Sylhet Division are susceptible to sudden floods and erosion along riverbanks, which have a significant impact on agricultural and people’s livelihoods. These regions encounter difficulties such as waterlogging and crop loss during the monsoon season. The Char Areas in the Rajshahi and Rangpur divisions are susceptible to riverbank erosion, floods, and droughts, which have a detrimental impact on agriculture and result in the displacement of residents. The Sylhet, Dhaka, and Rangpur divisions are susceptible to flooding and experience substantial precipitation levels (Islam et al., 2022). Sunamganj and Rangpur are districts located within the Sylhet and Rangpur divisions, respectively. Sunamganj is situated in the northeastern region of the country and is renowned for its Haor-dominated ecosystem. Haor is an exceptional wetland situated in the low-lying floodplain regions of northeast Bangladesh (Hoq et al., 2021; Soldavini and Ammerman, 2021). The Haor families residing in the Sunamganj district are highly susceptible to the detrimental effects of climatic disasters, especially when it comes to obtaining food, water, and healthcare services (Hoq et al., 2021). Kamal et al. (2018) found that 39% of homes in Bangladesh’s Sunamganj district were affected by the flash flood that occurred in 2017.

The study utilized data from the 2007 to 2023 from systematically searched related articles in databases like PubMed, Scopus, Google Scholar, and peer-reviewed journals. Study searched for articles based on the effect of climate change on food security and vulnerability of women following PRISMA guidelines (Page et al., 2021), and Key search terms for this study were as follows- “Food Security”; “Climate”; “Climate Change”; “Vulnerability”; “Vulnerable”; “vulnerable women” were used for this comprehensive study. A total 2,310 were initially found via this study’s systematic search, and an additional 35 articles were found by searching various databases. 2,243 of these articles were eliminated after abstract screening and 102 has been removed based on title screening. Out of 2,141 screened records, 1950 has been excluded based on abstract. Based on the similarities of this study, 191 complete publications were evaluated for eligibility where 183 full text articles being eliminated for various reasons, including poor quality (96), lack of primary data (23), lack of intervention (11), not fitting into the concept (36) and conference papers (17). In addition, a total of 5 articles were included from the review of references. A final selection of 13 articles were considered for the systematic review (Figure 2).

Current studies of impact of climate change on food security and vulnerability of women using extensive inclusion and exclusion criteria. The review included studies on women who are in vulnerable due to only climate change. Additionally, reports from other developing and developed nations were included in the study to allow for showing the actual pictures of the vulnerable situations. Excluded from the study were men who are vulnerable.

Food security is greatly impacted by climate change, which increases the hazards of uncertainty for women who are already at risk (Lee et al., 2024). In the 21st century, 70–85% of meteorological disasters are attributed to severe weather events such as heat waves, droughts, and floods and the resulting disaster losses (Moon, 2023; Nie and Lee, 2023; Wang and Lee, 2023). Bangladesh is one of the countries most affected by climate change, mostly because of a lack of institutional, technological, social, and economic resources (Ahmed and Haq, 2017). Many of the causes that drive migration have been impacted by climate change, which has an effect on the most vulnerable people, including women (Bettini, 2017). Global hunger is mostly being caused by rising food costs, which are a result of climate change (Brizmo-hun, 2019). Climate change has the most direct impact on crop output, which is also highly susceptible to it (Guo et al., 2022). Climate change impacts food production, with temperature and rainfall having a greater impact on agricultural productivity, which drives the economy (Casa and Ovando, 2014). Irregular rainfall and high temperatures can disrupt the natural structure and nutritional makeup of food crops like rice, wheat, and maize, leading to reduced crop quality and nutritional deficiencies (He et al., 2020). Insufficient sunshine can negatively impact crop quality, especially in agricultural production areas with poorly ventilated and opaque light. The process of climate change to food insecurity has been shown in Figure 3.

Extreme weather occurrences in Bangladesh have been more frequent and intense over the past few decades (Dastagir, 2015; Table 1). The average temperature has been rising by 0.20°C every 10 years. Bangladesh’s riverine and coastal populations are particularly susceptible due to their limited ability to adapt and frequent exposure to natural catastrophes (Uddin et al., 2019). Climate change risks have led to many individuals transferring their families to isolated char land islands, primarily due to the risk of flooding. According to a number of studies, the char land community is particularly vulnerable to climate change (Monirul et al., 2017).

Gender is a significant indicator of vulnerability, encompassing issues like resource depletion, knowledge and decision-making access, and livelihood prospects (Dankelman, 2010; Alston, 2013). The primary causes of women’s increased susceptibility include sociocultural norms and unequal power-based dynamics across a range of formal and informal organizations (Hunt and Watkiss, 2011). The availability of food and water is impacted by climate change, which puts more strain on women who are typically expected to do household chores (Alston and Akhter, 2016; Tanjeela and Rutherford, 2018). Natural disasters and water shortages cause women to trek long distances for water, while unsanitary habits, illnesses, hypertension, and eclampsia affect women and teenage girls, reducing earning potential (World Health Organization, 2014).

Climate change impacts human health, food security, livelihoods, and natural resources, posing a serious threat to all aspects of human life due to our intrinsic connection to the environment. Climate change impacts women, who are less likely to own productive assets and rely on natural resources for livelihoods, disproportionately due to social norms requiring them to manage time-consuming tasks like food gathering and fuel fetching. Women face disadvantages like overrepresentation in the poor, decision-making barriers, mobility challenges, and unequal access to resources, necessitating understanding gendered climate change effects for inclusive strategies. In order to do this, this research investigates the relationships between gender and the effects of climate change in Bangladesh. For instance, uneven property damage, asset losses, and lost productivity due to climate-related hazards exacerbate inequality (Islam and Winkel, 2017). As a result, vulnerable populations—particularly women in developing nations like Bangladesh face disparities in food insecurity, financial hardship, and precarious employment (Azad et al., 2013; Reggers, 2019).

The effects of climate change are intimately associated with how women are divided into different genders globally. Balgis (2009) notes that in developing nations’ rural areas, where the most impacted sectors reside, women have the primary responsibility for the provision of energy and water connected to family food security. Women spend hours waiting in line for water, even in metropolitan settings, which limits their prospects for social interaction and economic activities. The Food and Agricultural Organization (2010) supports these results and predicts that women would experience increasing poverty, social disruption, and food insecurity as a result of climate change. According to a study by Regmi (2011), explored that women’s livelihoods are at risk due to climate uncertainty, which therefore affects household food security and income. In addition, poverty, biological disparities, and societal prejudice make them more vulnerable. They are consistently ignored in their family, which limits their ability to participate and play a part in decision-making. They are never given an education and are constantly left to take care of the house; child marriages shift the responsibility for providing for the family at a younger age, leaving them even more vulnerable. Globally, 60% of undernourished individuals are women and girls, who have limited resources to care for them. Underdeveloped countries lack effective laws and policies to protect women’s social, economic, and cultural rights, resulting in gender imbalances and putting women at risk of vulnerability (IUCN, 2020). It is imperative that we empower them in every way. They frequently should not be viewed as victims because of their weak knowledge and abilities.

Human health is seriously threatened by climate change, especially in Bangladesh’s heavily populated cities. Furthermore, women are more prone than males to migrate because of the loss of their communities’ means of subsistence, food insecurity, and alternatives for adaption. Human health is seriously threatened by climate change, especially in Bangladesh’s heavily populated metropolitan regions. The movement of people from rural to urban regions is one of the main effects of climate change in Bangladesh. A recent survey conducted by UN Women Bangladesh found that over 70% of Dhaka’s migrants come from coastal areas that are badly impacted by floods, cyclones, saline intrusion, and sea level rise. Due to lack of choices for adaptation in their villages, food insecurity, and loss of livelihoods, women are more prone than males to migrate (The Business standard, 2023). In Bangladesh, climate change affects many sectors, including agricultural agriculture, forestry, renewable energy, and water resource management, in a gendered way, according to a recent report by UN Women (2023). For example, although women have less access to and influence over natural resources than males do, they are more dependent on them for both their income and means of survival. Women face disproportionate unpaid care work, increased vulnerability to violence, and higher exposure to public spaces during climate-induced disasters, and are more likely to live in poverty. Gender inequality exacerbates climate change effects by limiting women’s access to education, resources, and decision-making in climate change mitigation and adaptation processes. Problems facing by Vulnerable women due to climate change in Bangladesh has been shown in Figure 4.

Apart from substance abuse, another matter of concern is the psychological well-being of men living in impoverished metropolitan areas. Their mental health suffers as a result of the stresses brought on by social injustice, poverty, and restricted access to mental health care. The climate change in Bangladesh disproportionately affects women, leading to untreated mental health issues. Gender-sensitive strategies, specialized healthcare, resilience building, and community-based initiatives are needed to address these issues. Through acknowledgement and resolution of these gendered issues, urban Bangladesh may construct a more robust and inclusive healthcare system that safeguards the health and welfare of all of its citizens, irrespective of gender.

Global economic development is causing the planet to warm, leading to increased natural disasters and challenges for poverty eradication and food security due to repeated catastrophic events such floods, droughts, and cyclones, which has a substantial influence on food security (Alamgir et al., 2018; Ali et al., 2020; Moon, 2023). Recent research indicates that Bangladesh’s volatile climate and harsh weather patterns significantly affect agricultural productivity, particularly rice cultivation, which is a major grain in the country. Bangladesh’s northern region and the southern coastal belt have been particularly severely affected (Sarwar and Khan, 2007). Decreased agricultural yields caused by floods and saltwater intrusion into fields have an influence on the availability and accessibility of food and reduced 7–10% agricultural production (Government of Bangladesh, 2017). In Bangladesh, climate change is not just lowering agricultural production but also affecting the quality and safety of food (Moon, 2023).

Climate change is causing significant negative impacts on food production and distribution, potentially leading to acute food scarcity for five to 170 million people globally by 2080 (Josef and Tubiello, 2007). Similar to this, Food and Agricultural Organization (FAO) (2020) reported that Bangladesh’s total food imports in FY 2019–20 accounted for 23% of its total goods exports. Bangladesh’s policy planners have misunderstood the country’s food security, ignoring the recurring economic burdens of natural disasters like floods, droughts, and cyclones (Sarker et al., 2012). Furthermore, a drought severely reduces agricultural productivity, which causes a lack of food grains. Bangladesh’s severe history of droughts dates back to its independence in 1971 and includes the years 1973, 1978, 1979, 1981, 1982, 1989, 1992, 1994, and 1995 (Hossain, 1990). Therefore, severe events have a substantial influence on Bangladesh’s food security, impeding the self-sufficiency and increasing dependency on the global food market, which in turn hinders economic growth. In Bangladesh, there is expected to be a rise in rainfall-associated severe tropical cyclones and floods and extreme weather events linked to climate change are predicted to become more frequent and intense, which would result in significant loss and damage since there would be limited choices for adaptation (Hoegh-Guldberg et al., 2018).

In actuality, Bangladesh has already seen catastrophic weather occurrences linked to climate change in the last 10 years (Figure 5). 6.1 million people were affected by a protracted period of flooding in Bangladesh in 2017 that submerged 42% of the nation (Davis, 2017). According to historical data of cyclones over the past 100 years, 50% of all global mortality and damages occurred in Bangladesh (Alam et al., 2018). As a result of climate change and increased regional and worldwide weather variability, the frequency of extreme climatic events is rising. As a result, the study’s evaluation of loss and damage may serve as a reference for assessing loss and damage from future climatic disasters as well.

Climate change’s global impact is unmeasurable due to institutional obstacles and natural causes, increasing vulnerabilities and hindering adaptive capabilities (Uittenbroek et al., 2013). The major obstacles for climate adaptation, food security and Vulnerability of women are shown in Figure 6 including gender inequality, availability of resources, Increasing frequency of climate change scenarios, Knowledge on climate change impacts, Competition among different planning obstacles, Absence of proper responsibilities and inadequate infrastructure, Inappropriate addressing of vulnerable populations, Less teamwork among vulnerable women, Insufficient Cooperation among different stakeholders etc. To ensure appropriate adaptation, one of the biggest obstacles is integrating policies (Chowdhury and Hossen, 2017). Weak organizational capacities and a lack of institutional mechanisms impede the implementation of initiatives and programs linked to adaptation (Combes et al., 2019). The creation of reliable and equitable resilience assessment frameworks is not without its difficulties. Adapting to climate change might be hampered by a lack of understanding, spiritual standards, and conventional structures. Moreover, regional gender norms and beliefs influence adaption strategies and potentially obstruct livelihoods (Kamal et al., 2018). Bangladesh faces a complex issue with climate change impacting food and health security, with the lack of institutional and financial support being a significant barrier to adaptation (Haider et al., 2018). Bangladesh faces food and health security challenges due to gender inequality, education gaps, and ignorance about climate-smart behaviors. Innovation and sustainable agriculture investments are needed for overcoming the obstacles for climate adaptation, food security and Vulnerability of women in Bangladesh.

The study on the impact of climate change on vulnerable women in Bangladesh, especially in terms of food security, is limited and requires further investigation. Tanny and Rahman (2016) highlighted the vulnerability of women in Bangladesh, particularly in areas like health, security, and work participation, to climate change and power disparities. Ferdous and Mallick (2019) demonstrate how prejudice brought on by the dowry system, restricted access to education, and domestic abuse leaves women very vulnerable. Furthermore, Naz et al. (2018) found that for women to be able to adapt to floods brought on by climate change, they require better access to land and literacy. Islam (2017) identifies comparable actions to lessen women’s susceptibility to flood dangers. The findings align with previous observations of gender-based drought vulnerabilities in other national contexts (Ncube et al., 2018; Ndlovu and Mjimba, 2021). Because of their gender roles, which are formed by socioeconomic institutions and old patriarchal norms, women are perceived as susceptible in these circumstances. The literature study mentioned above makes clear how significant of a threat climate change is. Nevertheless, there aren’t many studies done in Bangladesh that look at how the weather impacts food security and the lives of low-income women.