What is the main environmental issue caused by the burning of sulfur-containing fuels?

The main environmental issue caused by the burning of sulfur-containing fuels is the production of acid rain. When these fuels are burned, sulfur dioxide (SO2) is emitted into the atmosphere. This gas can react with water vapor and other compounds in the air to form sulfuric acid (H2SO4), which can then fall to the ground as acid rain. Acid rain has detrimental effects on ecosystems, soil, and water bodies, leading to issues such as reducing the pH of soil and water, harming plant life, and damaging aquatic habitats.

The formation of acid rain is a significant concern because it not only impacts natural environments but also infrastructure. For example, it can corrode buildings and monuments, particularly those made of limestone or marble. Thus, the relationship between burning sulfur-containing fuels and acid rain is crucial in understanding the environmental consequences of fossil fuel consumption.