Sulfur oxidation is a chemical process where sulfur compounds are converted into sulfur oxides, primarily sulfur dioxide (SO2) and sulfur trioxide (SO3). This reaction typically occurs in the presence of oxygen and can happen naturally, such as during volcanic eruptions, or through human activities like burning fossil fuels. The oxidation of sulfur is significant because it contributes to acid rain, which can harm ecosystems, buildings, and human health. Understanding sulfur oxidation is essential for developing strategies to reduce its environmental impact and improve air quality.