Climate change has become one of the greatest challenges facing the world today, with far-reaching impacts on global security. This phenomenon not only threatens the environment, but also has the potential to exacerbate conflicts, increase migration and affect social stability. One of the main impacts is the increasing frequency and intensity of natural disasters, such as floods, tropical storms and drought. Countries with weak infrastructure are often the most affected, creating conditions that can fuel tensions between communities. Climate change also instills uncertainty in the governance of natural resources. The availability of clean water, for example, is increasingly limited in many areas. This can create competition between different countries or groups, especially when the resources are cross-border. A clear example can be seen in the Middle East region, where the problem of drought has increased tensions between countries along the Euphrates and Tigris Rivers. In addition, migration due to climate change is becoming an increasingly pressing issue. Many people are forced to leave their homes due to intolerable conditions, such as prolonged drought or frequent floods. This phenomenon often triggers conflict at the destination, as newcomers compete with local residents for limited resources. European countries have seen an increase in the number of refugees due to climate factors, which often sparks political and social debate. The national security sector is also directly affected. Militaries in various countries must consider the impacts of climate change in their operational planning. Extreme weather can disrupt humanitarian missions, training and peacekeeping operations. Several countries, including the US and UK, have begun to incorporate climate risks into their defense strategies. Investment in green technology is becoming increasingly important to address these impacts. Renewable energy can help countries reduce dependence on fossil resources which often trigger conflict. However, this transition also requires attention so that it does not create negative social impacts, especially for communities that depend on traditional industries. Strong international partnerships are key to overcoming these challenges. The Kyoto Protocol Act and the Paris Agreement are examples of collective efforts to reduce greenhouse gas emissions and combat climate change. This cooperation not only addresses environmental issues, but also helps maintain global security by preventing conflicts that could arise due to the impacts of climate change. The impacts of climate change cannot be seen as an issue separate from global security. They are interrelated and require a comprehensive approach from governments, international organizations and the private sector. Policies must include mitigation and adaptation strategies that focus not only on the environment, but also on increasing the social and economic capacity of society. These joint efforts will be critical in creating a safer and more sustainable world.