Climate change has emerged as one of the most pressing global challenges, posing profound risks not only to the environment but also to human security. Human security is a multidimensional concept encompassing seven critical dimensions: economic, food, health, environmental, personal, community, and political security. The impacts of climate change on these dimensions are particularly acute in developing countries, where vulnerability is heightened by poverty, inadequate infrastructure, weak governance, and dependence on climate-sensitive livelihoods. Economic security refers to the assurance of a stable income and access to resources necessary for a decent standard of living. Climate change affects economic security primarily through its influence on livelihoods, employment, and productive resources. In developing countries, a significant proportion of the population depends on agriculture, fishing, and forestry—sectors highly sensitive to temperature fluctuations, changing rainfall patterns, and extreme weather events. Prolonged droughts, floods, and cyclones destroy crops, reduce agricultural yields, and disrupt local markets, thereby decreasing household incomes and increasing poverty. Moreover, climate-related disasters can erode physical and financial assets, including infrastructure, homes, and savings, leaving communities economically vulnerable. The economic instability caused by climate change can lead to increased migration, both internal and cross-border, as individuals seek safer living conditions and employment opportunities elsewhere, thereby placing additional stress on urban centers and neighboring regions. Food security, defined as the access to sufficient, safe, and nutritious food, is closely intertwined with economic security. Climate change directly threatens food production by altering precipitation patterns, causing heat stress on crops, and increasing the frequency of pests and diseases. In developing countries, smallholder farmers often lack access to irrigation, quality seeds, and technological resources, making them more susceptible to these climatic shocks. Rising temperatures and shifting rainfall can reduce staple crop yields, affecting the availability and affordability of food. Floods and droughts disrupt supply chains, contributing to food price volatility, which disproportionately affects low-income households. Malnutrition, particularly among children and pregnant women, becomes more prevalent under these conditions, exacerbating health challenges and impairing human capital development. Consequently, food insecurity under climate change not only threatens immediate survival but also undermines long-term societal stability and resilience. Health security, encompassing protection from disease and access to adequate healthcare, is severely impacted by climate change. Rising temperatures and changing precipitation patterns influence the distribution of vector-borne diseases such as malaria, dengue, and Zika virus. Heatwaves and extreme weather events increase the incidence of heat-related illnesses, injuries, and fatalities, especially among vulnerable populations like the elderly and children. In developing countries, healthcare infrastructure is often insufficient to cope with sudden surges in medical