Climate change is one of the most important issues in global discussions and has a significant impact on world biodiversity. This impact is reflected in the disappearance of species, changes in habitat, and increased pressure on the ecosystem. In general, biodiversity encompasses the variety of life on earth, including species of animals, plants, and microorganisms and their interactions in ecosystems. First, rising global temperatures due to climate change disrupt ecosystems. Many animal and plant species cannot adapt quickly to new temperature conditions, leading to migration or extinction. For example, penguins in Antarctica are facing threats, because the sea ice in which they hunt for food continues to shrink. Changes in temperature also affect species’ reproductive patterns, with some animals starting to reproduce earlier or later than usual, upsetting the balance of the ecosystem. Second, climate change affects water availability. Many areas are experiencing extreme drought, while other areas are facing flooding. Limited water availability threatens the habitat of freshwater species, reducing the number of fish and other organisms that depend on these ecosystems. For example, coral reefs which are the habitat of many marine species experience bleaching due to high sea temperatures, resulting in loss of marine biodiversity. Third, recent changes in rainfall patterns have resulted in changes to terrestrial habitats and vegetation composition. In some areas, tropical forests are experiencing deforestation due to increasing temperatures and drought, which can trigger the extinction of species that depend on these habitats. Research shows that species with small distribution areas are particularly vulnerable to these changes. Fourth, invasive species benefit when climate change alters the geographic range of climates. These species are often more competitive and can displace local species, threatening existing biodiversity. For example, invasive fish species in many lakes disrupt local ecosystems by preying on native species. Fifth, the impact of climate change is not only limited to individual species, but also affects ecosystem processes as a whole. Changes in food availability and species migration patterns can cause food chains to be disrupted, potentially disrupting entire ecological interactions. Research shows that predatory animals at the top of the food chain such as tigers and bears are experiencing a decline, which has an impact on herbivore populations. The future resilience of biodiversity depends on climate change mitigation efforts. Conservation of natural habitats, restoration of affected ecosystems, and sustainable resource management are some of the steps that are urgently needed. Further research is needed to understand long-term impacts and help develop adaptation strategies for threatened species. By understanding the various ways climate change affects biodiversity, we can contribute to conservation efforts and ensure healthier ecosystems for future generations.