Climate change is becoming an increasingly crucial global issue. The impact is not only felt by humans, but also on all aspects of the ecosystem, including biodiversity. Biodiversity, or biodiversity, includes various types of species, genes and ecosystems found on earth. Climate change can alter interactions between species, result in habitat loss, and affect migration and reproductive patterns. One of the main impacts of climate change is temperature change. Rising temperatures can shift species distributions to colder regions, such as mountains or the poles. Species that are unable to adapt or move may face extinction. An example is the polar bear which relies on sea ice for hunting. With the melting of the ice, they have difficulty finding food. Apart from that, climate change also causes changes in rainfall patterns. Some areas are experiencing an increase in extreme rainfall, while others are facing drought. Forest, savanna and grassland ecosystems are highly dependent on rainfall patterns. Reducing or increasing rainfall can change species composition, resulting in a decline in native plants and an increase in invasive species that are more resistant to change. The results show that genetic diversity within certain species may be threatened by changing climatic conditions. With reduced gene diversity, species become more susceptible to disease and pests. For example, food crops produced from varieties with low genetic diversity are at greater risk of crop failure due to climate change. Climate change causes ocean warming, which impacts marine ecosystems. Corals, which are considered the “rainforest of the sea”, are very sensitive to high temperatures. Thermal stress can cause coral bleaching, which not only affects the coral itself, but also other species that depend on it for food and shelter. Disruption to the species’ life cycle is also a concern. For example, fish spawning times can change due to rising water temperatures, potentially affecting predator and prey interactions. These changes can disrupt food chains, with much greater impacts in the ecosystem. Biodiversity is not only important for the sustainability of ecosystems, but also for human life. Many medicines are derived from compounds found in plants and animals. With the loss of species, the potential for discovering new drugs also decreases. Climate change and its impacts are already visible throughout the world. Humans have a responsibility to maintain biodiversity so that ecosystems remain healthy. Conservation efforts, habitat restoration, and reducing greenhouse gas emissions are some of the steps that can be taken to mitigate these impacts. Awareness of climate change and its impact on biodiversity must be strengthened in all aspects of life. With proactive steps, it is hoped that we can together fight the negative impacts of climate change and maintain biodiversity for future generations.