Global warming is a phenomenon that triggers climate change throughout the world, its impact is very significant on biodiversity. There are several key mechanisms that show how increasing global temperatures threaten species and ecosystems. Rising temperatures cause shifts in natural habitats. Many species, especially those confined to specific ecosystems, cannot adapt quickly to these changes. For example, shifting the distribution area of flora and fauna, such as fish and birds, to cooler areas. This causes the loss of local species and threatens the balance of the ecosystem. Furthermore, rising temperatures also increase the frequency and intensity of extreme weather, with floods, droughts and storms becoming more common. Ecosystems already exposed to human pressures, such as deforestation and pollution, become more vulnerable to such changes. This habitat destruction is especially harmful to already endangered species, creating a domino effect that damages biodiversity. In addition, global warming has an impact on water availability. Changes in rainfall patterns have resulted in water shortages in some areas, resulting in damage to freshwater ecosystems. Species that depend on freshwater, such as salmon, face population declines due to changes in life cycles influenced by temperature and changes in river flow. No less important is the impact of marine aquariums. As sea temperatures rise, coral reefs are bleaching, causing habitat loss for hundreds of fish species. Changes in seawater pH also impact marine organisms, especially those with shells, disrupting the maritime food chain. Seasonal time shifts are also a problem. Many species depend on annual timing for breeding and migration. A mismatch between reproductive timing and food availability can result in a decrease in the number of individuals, even threatening the survival of the species. These ecosystem changes not only affect species at the level of adaptation, but also change interactions between species. Predators and prey may no longer exist in a balanced ecosystem, but are disrupted by changes in life cycles, distribution and behavior due to global warming. On agricultural land, global warming also threatens biodiversity by changing agro-ecosystems. Rising temperatures and weather changes can exacerbate plant pests and diseases, leading to higher pesticide use, damaging the environment and surrounding biodiversity. The importance of preserving biodiversity cannot be ignored. Healthy ecosystems are able to provide vital services, such as carbon storage, maintaining water quality, and mitigating the impacts of natural disasters. With this increasing threat, global warming mitigation actions become urgent, one of which is through reducing carbon emissions and preserving habitats. Collaborative efforts between scientists, governments and the global community are essential to mitigate the impacts of global warming on biodiversity.