The primary element in natural gas is methane (CH4). Composed mostly of carbon and hydrogen, methane is a key component that makes natural gas valuable as a fuel source. It is used for heating, electricity generation, and as a feedstock in chemical processes. The presence of methane in natural gas contributes to its high energy content compared to other fossil fuels, making it an important part of the global energy industry. Additionally, when burned, methane produces less carbon dioxide per unit of energy than coal or oil, making it a cleaner alternative.