The energy source that has seen a sharp rise in usage due to its lower emissions than coal is natural gas.

Natural gas has become increasingly popular as a cleaner alternative to coal for electricity generation due to its significantly lower carbon emissions. When burned for energy, natural gas releases fewer greenhouse gases and pollutants such as sulfur dioxide and nitrogen oxides compared to coal. This shift toward natural gas has been driven by its availability, affordability, and environmental benefits, helping reduce the overall carbon footprint of power generation while meeting growing energy demands. It is considered a key bridge fuel in the transition to renewable energy sources.