Global forest fires have become one of the most pressing environmental issues of this century. With the increasing frequency and intensity of fires, the threat to the world’s ecosystems is becoming increasingly apparent. These fires not only damage vegetation but also affect biodiversity, air quality and global climate. First, forest fires cause significant habitat loss for many species. In the Amazon jungle, for example, millions of hectares of land have been scorched, destroying the home of a wide variety of flora and fauna. The decline in populations of endangered species is one of the direct results of these fires. Additionally, fires result in habitat fragmentation, which isolates species and limits genetic interactions between them. Second, the impact of forest fires on air quality is very disturbing. The resulting smoke can spread far to areas far from the fire location. Fine particulates from smoke are harmful to human health, increasing the risk of respiratory and cardiovascular diseases. According to a World Health Organization (WHO) report, air pollution due to fires causes thousands of deaths every year. The effects on global climate cannot be ignored either. Forest fires release large amounts of carbon dioxide (CO2) into the atmosphere, contributing to climate change. Research shows that fires in tropical areas can increase global temperatures by exacerbating the greenhouse effect. This phenomenon becomes a dangerous cycle, where warming temperatures lead to more fires, which then cause more CO2 emissions. Furthermore, forest fires also affect the water cycle. Forests function as water absorbers, and the destruction of forest land causes a decrease in the amount of water that can be absorbed. As a result, affected areas are more vulnerable to drought, which impacts agriculture and food security. In a social and economic context, forest fires have a significant impact on local communities. Communities that depend on forests for daily life will face enormous challenges in finding lost resources. Loss of livelihood can trigger an increase in poverty and disrupt social stability. Various efforts have been made to overcome the problem of forest fires. Prevention initiatives include sustainable forest management and public education about the importance of conservation. The use of technology such as satellite monitoring also helps in detecting fires earlier for faster response. In conclusion, global forest fires are a serious threat to the world’s ecosystem. The impacts are widespread, from loss of biodiversity to human health problems and climate change. Joint efforts and collective awareness are needed to prevent and overcome this increasingly worsening problem. Through concrete actions, we can contribute to protecting the earth from further destruction.