The impacts of global climate change on biodiversity are complex and widespread, directly affecting not only species and ecosystems, but also human health and environmental sustainability. Changes in temperature, rainfall patterns and extreme weather events pose significant threats to species worldwide. One of the main impacts of climate change is habitat change. Many plant and animal species depend on certain climates to survive. For example, deforestation due to rising temperatures creates unfavorable conditions for flora that require cool temperatures. In tropical rainforests, such as the Amazon, monoculture planting and other human activities exacerbate environmental change, resulting in a tremendous loss of biodiversity. In the ocean, rising surface water temperatures and ocean acidification caused by the absorption of carbon dioxide lead to major problems for marine life, especially coral reefs. Coral reefs, which are home to many species of fish and other sea creatures, are vulnerable to bleaching. According to research, more than 50% of the world’s coral reefs experienced bleaching in 2016. Loss of coral reefs has a negative impact on aquatic ecosystems and on communities that depend on marine products to live. Genetic diversity is also threatened. Isolated species, such as birds that only occur on small islands, are more vulnerable to climate change. The inability to migrate to more suitable environments results from habitat fragmentation, making them more likely to become extinct. Additionally, changes in plant pollination due to shifts in flowering times and species interactions can exacerbate these problems, disrupting food chains in many ecosystems. Climate change is also exacerbating the spread of invasive species. With higher temperatures, certain species can aggressively expand their habitats, dominating local ecosystems and displacing native species. A clear example is the expansion of the population of a plant called “Rubber Tree” in Southeast Asia which is changing the structure of natural forests and affecting local fauna. Biodiversity loss not only damages ecosystems but also affects humans directly. Ecosystems rich in biodiversity have many benefits, such as providing food, medicine and water conservation. With the loss of species, these resources are threatened, which has long-term impacts on global food security. Climate change is a real threat that needs to be faced collectively. Developing policies that support conservation, ecosystem restoration and reducing greenhouse gas emissions is a crucial step. Protecting biodiversity is not only important for ecosystem stability, but also for strengthening society’s resilience to massive environmental change. The sustainability of the planet depends largely on actions taken today to safeguard biodiversity for future generations.