## 4 Discussion  
In this section, we pose two fundamental questions for this research. The first answers the question of whether there is a relationship between inequality and climate change. The second examines the role of the circular economy as an element that can contribute to reducing inequality and the effects of climate change, and thus contribute to the achievement of the three SDGs set out in this work (end poverty, SDG 1; reduce inequality, SDG 10; and climate action, SDG 13). To resolve the first question, and based on the results obtained in this research, we can affirm a close and direct relationship between the three SDGs analysed, because 73.03% of the works analysed demonstrate this. Furthermore, we can see that the effects of climate change generate patterns of inequality in health, gender, and income, as indicated below. This work shows that health has a basic role in the face of climate change, poverty, and inequality, with 81.59% of the works analysed related to this. Among the main problems related to the health of the most vulnerable people affected by this problem, those related to contaminated water, food insecurity, malnutrition, and hunger can be highlighted [46]. Due to the lack of water infrastructure, this population has to drink water from rivers contaminated with microorganisms and chemicals, causing severe diseases such as cholera, typhoid fever, and hepatitis A [39; 40]. In addition, climatic adversities impact harvests and prevent sufficient access to healthy and wholesome food, cause food prices to rise, and restrict consumption, as experienced by indigenous people in Canada and rice farmers in the Philippines [41; 47; 48]. Aboriginal peoples living in remote areas face greater challenges and are more vulnerable to the climate than urban populations, due to their close ties to the land, and more pronounced socio-economic and political marginalisation [49; 50]. Lack of provision of transportation, whether public or private, and road infrastructure hinders access to early medical care to prevent and cure diseases [47; 51]. Concerning gender inequality, we highlight in this SLR that the role of women in climate change mitigation policies is not taken into account, because they are one of the most affected groups [44]. A detailed reading of the 201 articles analysed shows that, since the 1970s, women have not benefited equally from agricultural development programmes in underdeveloped countries [52]. This discrimination was due to the attachment of women to the roles of mother and wife [53], and to the existence of a global gender gap between vulnerabilities and access to resources. This led to a gender-differentiated capacity for climate adaptation, in which women and girls have been placed at a disadvantage [46]. Moreover, because of this role, which is mainly associated with the performance of domestic tasks, women face increasing risks to their health [36]. Cooking over an open fire with solid fuels results in incomplete combustion, causing severe respiratory diseases that exacerbate mortality among women and children in rural areas of sub-Saharan Africa, Nigeria, Ethiopia, Malaysia, Mozambique, Bangladesh, and Kenya, among others [54; 55; 14; 56; 57]. Concerning income inequality, the two-way relationship between poverty and cli-mate change [58] is presented in the articles analysed. The articles highlight that the effects of climate change (droughts, floods, hurricanes, etc.) will be more challenging in the most impoverished countries, and in those where economies are based on the primary sector and dependent on agriculture as the main activity. This is the case of countries located in the southern tropics, such as sub-Saharan Africa, Kenya, Ethiopia, and Bangladesh, and among low-income people, i.e., the poorest [59; 60]. Furthermore, growth in poverty and income inequality increases CO2 emissions in these countries [45].