Climate change is the long-term change in the Earth’s average temperature caused by natural factors and human activities, such as the burning of fossil fuels, deforestation, and industry. One of the most significant impacts of climate change is on biodiversity. Biodiversity, which includes variations in species, ecosystems, and genes, is the basis for the survival of life on Earth. As the climate changes, species and ecosystems experience significant stress. One of the main impacts of climate change is an increase in global temperatures. Higher temperatures can cause loss of natural habitat for many species. For example, a warmer climate drives the movement of species to cooler areas, which can trigger competition with local species and change the community structure of ecosystems. In polar regions, species such as polar bears and penguins face survival risks as melting sea ice reduces their hunting areas. Changes in rainfall patterns also affect biodiversity. In some areas, increased rainfall can cause flooding, while in other areas, decreased rainfall can result in drought. These two extreme conditions can damage habitat and affect the availability of food sources. For example, plants that depend on certain rainfall for growth may not be able to survive, leading to negative impacts on the food chain. In addition, climate change is causing an increase in the frequency and intensity of natural disasters, such as cyclones, forest fires and hurricanes. These events have a direct impact on biodiversity by destroying habitats, reducing species populations, and disrupting reproductive processes. More frequent forest fires, for example, not only burn vegetation but also affect wildlife that depends on that vegetation. Increased concentrations of carbon dioxide (CO2) due to human activities also affect plant growth, especially marine plants such as seagrass and coral reefs. Increasing CO2 levels can lead to ocean acidification, which disrupts the ability of these organisms to build their calcium carbonate structures. Damage to coral reefs has the potential to result in the loss of homes for various species of fish and other marine organisms. Climate change affects the migration and reproductive patterns of species. Migratory birds, for example, may experience a mismatch in the timing of migration and the availability of food resources, which can reduce their reproductive success. This not only impacts the species but also the ecosystem as a whole. Biodiversity loss due to climate change can have even wider impacts, including on food security, human health and environmental stability. Diverse ecosystems serve as a safety net against environmental change, providing ecosystem services such as pollination, natural pest control, and carbon storage. With increasing awareness about the impacts of climate change, it is important for individuals, communities and governments to take mitigation and adaptation actions. Appropriate conservation efforts and policies that support sustainability can help protect threatened biodiversity, ensuring that ecosystems remain healthy and functioning for future generations.