Ongoing climate change poses a serious threat to biodiversity throughout the world. Rising global temperatures, changes in rainfall patterns, and the frequency and intensity of natural disasters are increasing, affecting existing ecosystems and species. This impact can be seen at various biological levels, from individuals, populations, to the ecosystem as a whole. Rising temperatures can change the natural habitat of species. For example, species that usually live in cold areas, such as polar bears and penguins, are experiencing population declines due to melting polar ice. This species is losing habitat and food, so their survival is threatened. On the other hand, more adaptive species can expand their range into new areas, but often disrupt the balance of the local ecosystem. Erratic changes in rainfall also contribute to the decline in biodiversity. Plants and animals that depend on stable rainfall patterns often have difficulty adapting. For example, coastal mangrove species affected by increased frequency of hurricanes experience habitat destruction, affecting species that depend on those areas, including fish, birds, and other organisms. Seasonal shifts also have a significant impact on species’ life cycles. The migration of many bird species is disrupted due to changes in the timing of food availability, such as earlier flower blooming. This can lead to a mismatch between migration periods and food availability, adversely affecting survival and reproduction. Interactions between species are also disrupted. Predators and prey, as well as symbiotic relationships, may be disrupted by changes in activity schedules due to climate change. However, this doesn’t just happen on land; in marine ecosystems, increasing water temperatures can affect plankton, which is the basis of the food chain, causing a domino impact on the entire marine ecosystem. Additionally, climate change often exacerbates other threat factors, such as deforestation, pollution and invasion of alien species. Habitats that have been disturbed are difficult to recover, and endemic species that are unable to compete can become extinct. Loss of these species not only harms local ecosystems but also affects ecosystem services that support human life. The importance of preserving biodiversity is clear. Species diversity provides ecosystem stability and contributes to food security, human health, and climate regulation itself. Conservation efforts must be intensified along with climate change mitigation measures to reduce negative impacts on flora and fauna. Investment in research and habitat conservation is essential to ensure the survival of threatened species and ecosystems. Public awareness through education and engagement activities is also crucial in supporting conservation efforts, because biodiversity is a universal asset that must be maintained for future generations.