While volcanoes release Carbon Dioxide, it is Sulfur Dioxide that significantly impacts global climate by causing cooling. When a powerful eruption sends SO2 into the stratosphere, it converts into sulfuric acid aerosols. These tiny particles stay suspended for years, reflecting sunlight away from Earth—a process known as “volcanic forcing.” The 1991 eruption of Mount Pinatubo, for example, cooled the Earth by about 0.5°C for several years. This geographical phenomenon highlights the profound link between volcanic emissions and short-term climate variability, occasionally leading to “years without a summer” following massive historical eruptions.