Climate change has become a global issue that not only affects the environment, but also global security. The impacts include increasing temperatures, changes in rainfall patterns and extreme weather events. This effect has the potential to create social and political instability in various countries. One of the most obvious impacts of climate change is human migration. Hundreds of millions of people are expected to become climate refugees due to rising sea levels and severe drought. Vulnerable countries such as Bangladesh, the Maldives and some countries in Africa are particularly likely to experience a surge in migration, which could trigger resource-based conflicts. As populations seek shelter and access to clean water, tensions between ethnic groups and countries may increase. Drought also poses a serious threat to food security. With a significant decline in agricultural output in food insecure areas, public dissatisfaction could trigger civil unrest. In countries such as Syria, the drought that has lasted for several years has become one of the factors triggering widespread conflict. Communities that lose their livelihoods are more likely to react in extreme ways, exacerbating instability. In addition, climate change can also exacerbate geopolitical tensions. Competition for increasingly scarce water, oil and mineral resources can trigger conflict between countries. For example, the Nile River and the Yangtze River are examples of causes of tension between countries regarding the use of water resources. Mitigating the effects of climate change requires international cooperation. Organizations such as the United Nations (UN) have invited countries to unite in overcoming this issue. Climate agreements, such as the Paris Agreement, provide a framework for reducing greenhouse gas emissions. Community action also played an important role in encouraging the government to take aggressive action. Climate change also poses challenges to global energy security. Countries that depend on fossil energy sources may find themselves trapped in limbo as those resources become increasingly depleted. The transition to renewable energy is crucial as an effort to find sustainable solutions and reduce dependence on energy that has a negative impact on the environment. Investments in environmentally friendly technologies can create new economic opportunities and reduce risks to global security. However, countries that are slow in this transition could face political and economic consequences, potentially facing major negative impacts. The impact of climate change on global security is a complex issue. It requires serious attention from various groups, from the government, business leaders, to society. With a holistic and collaborative approach, the world can begin to respond to these challenges and build resilience to an uncertain future.