Global climate change has become one of the most pressing challenges facing our planet, threatening not only human survival but also biodiversity. Changes in the earth’s increasing average temperature, along with extreme weather phenomena, have far-reaching impacts on various ecosystems and species. In this context, understanding the impact of climate change on biodiversity is crucial. First of all, increasingly hot temperatures are affecting the natural habitats of many species. Many species of flora and fauna are forced to move to cooler or higher locations to survive. For example, migratory bird species change their migration patterns due to changes in temperature, which can disrupt the balance of the ecosystem. This also affects food chains and interactions between species, potentially causing population declines of some species that are unable to adapt. In addition, climate change causes changes in rainfall patterns. Some areas are experiencing severe drought, while others are affected by flooding. These changes have a direct impact on the habitats that many species need to survive and reproduce. Forests, for example, are becoming more vulnerable to forest fires, which threaten endemic species. In the ocean, warming waters and ocean acidification are destroying coral reefs that provide habitat for many fish species, reducing marine biodiversity. Climate change also facilitates the spread of invasive species. Species not native to a region often thrive when new climatic conditions become favorable, outcompeting local species and changing ecosystem dynamics. For example, invasive plants can take over land, resulting in the loss of pre-existing native species. Environmental stress due to climate change can also cause a decrease in genetic quality in certain species. With increasingly isolated populations and reduced genetic diversity, the ability of species to adapt to further changes is severely limited. This makes them more susceptible to disease and reduces their ability to survive in the face of new threats. Ecosystem resilience depends on the diversity of the biosphere. When biodiversity declines, ecosystems become less stable and more vulnerable to disturbance. Ecosystems rich in diversity are often better able to recover from disasters, such as natural disasters, than degraded ecosystems. In other words, biodiversity loss exacerbates the impacts of climate change, creating a cycle that is detrimental to both parties. Overall, the impacts of global climate change on biodiversity are extensive and complex. From changes in habitat, to the spread of invasive species, to a decline in genetic quality, all of these factors contribute to the decline in biodiversity. The global community must be aware of this issue and work together to reduce greenhouse gas emissions and protect natural habitats, in order to maintain natural balance and the survival of species on earth.