What is one method to reduce acid rain emissions from power stations?

Using flue gas desulfurisation to remove SO₂ is an effective method for reducing acid rain emissions from power stations because this process specifically targets the sulfur dioxide (SO₂) produced during the combustion of fossil fuels, such as coal and oil. When SO₂ is released into the atmosphere, it can react with water vapor to form sulfuric acid, which contributes to acid rain.

Flue gas desulfurisation involves chemical processes that remove sulfur compounds from the exhaust gases before they are released into the environment. This technology typically uses a limestone or lime slurry to react with the sulfur dioxide, converting it into a solid byproduct, such as calcium sulfate, which can be disposed of or utilized in other applications. By implementing this technology, power stations can significantly lower their emissions of SO₂, directly reducing the potential for acid rain formation.

The other options, while they may contribute to a reduction of environmental pollutants or improve sustainability, do not specifically address the removal of sulfur dioxide, which is the main contributor to acid rain. Using renewable energy sources reduces reliance on fossil fuels, implementing carbon capture technology is primarily aimed at carbon dioxide emissions, and increasing energy efficiency focuses on reducing overall energy consumption. However, none of these options specifically target the SO₂ emissions