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

Using flue gas desulfurization (FGD) is an effective method to reduce acid rain emissions from power stations, specifically targeting the removal of sulfur dioxide (SO₂) from emissions. Acid rain primarily results from the release of sulfur dioxide and nitrogen oxides into the atmosphere, which react with water vapor to form sulfuric and nitric acids.

Flue gas desulfurization involves the removal of SO₂ from the combustion gases produced by burning fossil fuels. This technology typically uses a sorbent, such as limestone or lime, to capture and convert the sulfur dioxide into a more benign compound, like calcium sulfate. By implementing this process, power stations can significantly lower their SO₂ emissions, thus contributing directly to a reduction in the formation of acid rain.

While other methods like using renewable energy sources and switching to natural gas can also contribute to reducing overall emissions, flue gas desulfurization specifically addresses the problem of sulfur dioxide production in existing power generation systems.