Climate change has a significant impact on global energy security by creating new challenges that affect energy supply, distribution and use. The two main aspects of this impact are the instability of energy supply and the increase in energy demand due to climate change. Energy supply instability often results from more frequent natural disasters, such as storms, floods and droughts. For example, major energy producing countries, such as those in the OPEC organization, face major risks to their energy infrastructure. Oil and gas storage, which is usually located in coastal areas, is particularly vulnerable to sea level rise. When hurricanes hit, this infrastructure can be damaged, disrupting global supplies and increasing energy prices. On the other hand, increasing demand for energy is also an inevitable phenomenon. As the climate shifts, various sectors, including agriculture and transportation, are under pressure to adapt to new conditions. For example, global warming is driving the need for more efficient cooling systems, especially in areas that previously did not require intensive cooling. This contributes to higher energy demand, potentially exacerbating the risk of supply uncertainty. Climate change also affects the sustainability of renewable energy sources. Although centralized energy from solar, wind, and hydro has the potential to reduce dependence on fossil fuels, the viability of these resources could be threatened by changing weather patterns. For example, hydroelectric power plants depend on the availability of water, and extreme weather changes can result in shortages in raw water supplies. The transition to renewable energy also introduces new challenges in terms of the reliability and stability of the energy grid. Renewable energy-based electricity generation, such as solar and wind, is greatly influenced by weather conditions. Without an efficient storage system, fluctuations in renewable energy production could disrupt supply. Therefore, investment in energy storage and smart grid technologies is becoming increasingly important to ensure energy reliability. The social and economic impacts of climate change also affect energy security. Countries that depend on energy imports are more vulnerable to price and supply fluctuations resulting from climate change. Uncoordinated or ineffective national policies to address these challenges can exacerbate tensions between countries and lead to conflict. Increasing awareness of the importance of adapting to these changes is also encouraging international collaboration in the search for sustainable solutions. International conferences and agreements, such as the Paris Agreement, play an important role in minimizing the impact of climate change on energy security. Through investments in green technology and energy efficiency strategies, the world is striving to create a safer and more sustainable energy system. In facing these challenges, it is important for countries to increase their energy resolution and sovereignty. Through proactive policy development, diversification of energy sources, and technological innovation, countries can reduce the risks posed by climate change. An integrated and comprehensive approach is needed to protect and ensure energy security in the future.