Climate change is a global issue that not only affects the environment, but also stability and security in various regions. In recent years, the impact of climate change has become one of the main factors threatening global security, creating new challenges for governments and societies around the world. One of the most significant impacts of climate change is the increasing frequency and intensity of natural disasters such as floods, droughts and storms. These disasters not only damage infrastructure, but can also cause mass migration. According to UN data, millions of people have the potential to become climate refugees in the coming decades. This migration can trigger social and political conflict, especially in countries that are already vulnerable. In addition, climate change has a negative impact on natural resources, especially water and food. Lack of clean water and instability in food supplies can give rise to tensions between countries or ethnic groups competing for access to these resources. For example, in the Middle East and Sub-Saharan Africa region, there are increasing cases of tensions related to water resources, which are exacerbated by changing weather patterns. Climate change also contributes to increased economic instability. Validation research shows that countries dependent on agriculture are vulnerable to changes in temperature and rainfall. Crop failure can result in a food crisis leading to rising food prices. In situations like this, social dissatisfaction can increase and lead to protests or even chaos. On the other hand, countries with strong infrastructure and stable governance systems may be better able to cope with the impacts of climate change. However, challenges remain in maintaining positive diplomatic relations, as partner countries may experience different impacts. For example, richer countries may need to invest in solutions to help poorer countries deal with the impacts of climate change, which could fuel tensions if not managed well. In a military context, climate change is a concern for many armed forces around the world. Many countries now consider climate change a national security threat. Military services must prepare themselves to face humanitarian missions and maintain stability in areas affected by natural disasters. Therefore, many armed forces are starting to integrate climate considerations into their defense strategies. From a geopolitical point of view, countries rich in natural resources such as gas and oil can further strengthen their dominance by exploiting the potential of renewable energy. Competition for green technologies and renewable energy could forge new alliances and conflicts on the global stage. In conclusion, the impact of climate change on global security is complex and interrelated. Addressing this problem requires international collaboration and innovative solutions that can reduce negative impacts and strengthen the resilience of communities and countries. Facing this challenge, it is important to involve all levels of society, from government, the private sector, to individuals, to work together to reduce carbon footprints and promote sustainability.