Global warming has become an urgent environmental issue and has a major impact on biodiversity throughout the world. The Earth’s ever-increasing average temperature affects various aspects of life, from terrestrial to aquatic ecosystems. These changes lead to habitat loss, changes in species behavior, and population declines. One of the significant impacts of global warming is habitat change. Forests, oceans and swamps that are home to thousands of species are now threatened by rising temperatures and extreme weather changes. For example, disruption of coral reefs due to increasing sea temperatures causes coral bleaching which results in the loss of marine species that depend on these ecosystems. Temperature changes also influence species’ migration patterns. Many animals, including birds and mammals, are changing their migration schedules to adapt to climate change. These changes can cause a mismatch in the timing of food availability, thereby affecting their health and survival. Biodiversity in highlands, such as mountains, is very vulnerable to global warming. Species that live in areas with cool temperatures may no longer have shelter when temperatures rise. This leads to the extinction of species that cannot adapt quickly to these changes. In terrestrial ecosystems, flora and fauna also experience shifts. Plants may start growing earlier or later than usual, while the herbivore consumers who depend on them will experience changes in diet. These changes can destroy existing food chains and ecosystems. Global warming also contributes to the spread of invasive species. By changing the climate, species that previously could not survive in a region are now able to invade, competing with local species for resources. As a consequence, native species are being pushed out and their populations are declining. Not to forget, the impact on biodiversity is also related to humans. Loss of species can cause significant economic losses, especially for communities that depend on natural resources. With biodiversity decreasing, the potential for developing new medicines and nature-based products is also threatened. In addition, climate change will worsen already unstable environmental conditions, triggering extreme phenomena such as floods, droughts and forest fires. These events will further destroy the habitats where various species live, thereby accelerating the loss of biodiversity. Overall, global warming creates complex challenges and can change the structure of existing ecosystems. Mitigating climate change and protecting biodiversity must be carried out simultaneously to ensure the sustainability of species and ecosystems in the future. Habitat conservation, sustainable resource management, and increasing public awareness are important steps in dealing with the impacts of global warming.