Climate change is the long-term changes that occur in Earth’s temperature and weather patterns. This phenomenon is largely caused by human activities, especially greenhouse gas emissions such as carbon dioxide. The impacts of climate change are far-reaching and impact global ecosystems in complex ways. One of the main impacts of climate change is an increase in global average temperature. When temperatures rise, changes in natural habitat occur. Species that cannot adapt quickly to new temperatures face the risk of extinction. For example, coral reefs, which are highly vulnerable to high temperatures, are experiencing massive bleaching, resulting in significant loss of marine biodiversity. In addition, changes in rainfall patterns affect land ecosystems. Some areas are experiencing extreme drought, while others are facing more frequent flooding. Long-term drought impacts vegetation, reduces agricultural productivity, and threatens food security. On the other hand, floods destroy natural habitats and change river channels, which impacts local flora and fauna. Climate change also affects animal migration patterns. Many species move to cooler places to find suitable habitat. These movements often cause conflict with local species and disrupt ecological networks. For example, predators moving into a new region may threaten endemic species that are well adapted to that region. The ecosystem that is more threatened is the forest. Tropical rainforests and Arctic tundra are examples of particularly vulnerable ecosystems. Deforestation for agricultural land and increasingly hot temperatures are causing unprecedented habitat loss. This damage not only impacts flora and fauna but also contributes to higher carbon emissions, creating a vicious cycle. Meanwhile, the ocean plays an important role in regulating global climate. However, rising water temperatures and the absorption of carbon dioxide lead to ocean acidification. This impact is detrimental to marine organisms such as shellfish and plankton, which are an important part of the marine food chain. A decline in plankton populations can affect overall ocean productivity and reduce fish catches. Invasive species also benefit from climate change. With large natural ecosystems disrupted, invasive species can take over vacant habitats, displacing local species and reducing biodiversity. For example, species such as civets and snakes from other areas have had a major impact on the ecosystems on the islands. Looking at the impacts of climate change, it is important to realize how human actions can stop or at least slow the rate of change. Habitat protection, ecosystem restoration, and reducing carbon emissions are steps that can be taken. Through collaboration between governments, scientists and society, we can maintain biodiversity and support the resilience of the global ecosystem amidst existing challenges.