The combustion of fossil fuels primarily produces carbon dioxide, alongside other gases such as carbon monoxide, sulfur dioxide, and nitrogen oxides, depending on the fuel and conditions of combustion. This process occurs when fossil fuels like coal, oil, and natural gas are burned for energy, releasing energy in the form of heat and light. The release of carbon dioxide contributes significantly to the greenhouse effect, aggravating climate change by trapping heat in the earth's atmosphere. Therefore, the shift toward cleaner energy sources and technological advancements aimed at reducing emissions is increasingly vital for environmental sustainability.