Natural Gas is an important part of our energy sources today. It is a relatively clean energy source, and it is abundant in many parts of the world. Natural gas is classified as a fossil fuel, like coal and oil. It is formed over millions of years, through a process of heat and pressure in layers of sedimentary rock. Natural gas is found deep below the Earth's surface in underground reservoirs, and it is extracted using sophisticated drilling technology. Natural gas is made up of different components - mostly methane but also other hydrocarbons such as ethane and propane. It can be used in various ways, such as fuelling electric power plants, home heating, and providing a feedstock for industries that make products such as plastics and fertilizers. Natural gas is also becoming an increasingly popular fuel for motor vehicles, either in the form of compressed natural gas (CNG) or liquified natural gas (LNG). Natural gas can be a useful tool in our efforts to reduce emissions of greenhouse gases. Since it is a relatively clean-burning fuel, compared to coal or oil, it produces fewer emission when it is burned. Natural gas can also be captured and stored at the site of production, rather than vented into the atmosphere. This process, known as carbon capture and storage (CCS), can help reduce overall emissions of climate-changing gases such as carbon dioxide. Natural gas is an important part of achieving a cleaner and more sustainable energy system. While its benefits must be weighed against its environmental impacts (such as those associated with extracting and transporting it), natural gas will continue to play an important role in our energy mix for the foreseeable future.