The paper describes the impact of sulfur dioxide on climate change and its monitoring. As a key air pollutant, sulfur dioxide is produced by burning fossil fuels rich in sulfur, leading to aerosols and acid rain. Aerosols reflect sunlight into space, temporarily cooling the atmosphere, while acid rain negatively affects vegetation, soil, and buildings. Monitoring sulfur dioxide concentration is crucial for timely recognition and response to air pollution. Various measurement methods enable continuous air quality monitoring, including monitoring stations, mobile devices, satellites, etc. In Serbia, the SEPA network of monitoring stations is crucial for data collection and the definition and implementation of measures to reduce sulfur dioxide emissions into the air. Emission reduction can be achieved by using low-sulfur fuels, desulfurizing fuels, applying filters, and transitioning to renewable energy sources. Effective measures to reduce sulfur dioxide emissions contribute to reducing the greenhouse effect and global warming.