Many fuels produce pollutants such as greenhouse gases or waste when used. Which type of fuel produces the least amount of pollutants?

Renewable energy sources, particularly solar and wind power, produce the least amount of pollutants as they generate energy without emitting greenhouse gases or waste during operation. Among traditional fuels, natural gas is often considered cleaner than coal or oil, as it produces fewer carbon emissions when burned. However, the overall environmental impact also depends on factors like extraction and transportation processes. Ultimately, transitioning to renewable energy is crucial for minimizing pollution and combating climate change.