Natural gas is a very valuable and useful fossil fuel, and has been used throughout the world as an efficient and cost-effective form of renewable energy for hundreds of years. Natural gas-odorless, tasteless, shapeless and colorless in its purest form-is a flammable combination of hydrocarbon gases, created largely of methane. However, because its makeup can differ vastly, natural gas often contains amounts of propane, butane, ethane and pentane.
In addition, natural gas is a very safe and harmless substance, and is being increasingly used as an alternative source of renewable energy. When natural is burned off, it is clean burning, and while it emits large amounts of energy, it releases lower doses of possibly unsafe or dangerous byproducts than other fossil fuels. For example, when it burns, natural gas generates much less carbon dioxide into the atmosphere than coal. In addition, natural gas is in itself harmless to the human body.
Although natural gas is generally considered a safe source of renewable energy, there are potential risks involved. When natural gas is available in substantial concentrations, it has the potential to kill by decreasing the amount of oxygen in the air. Natural gas explosions can also occur when large amounts of the gas are contained, which can kill and destroy.
Despite the risks involved, the energy emitted from natural gas is valuable and is used in many different areas of life and society. For example, natural gas is used for its efficiency and cost effectiveness to heat people's homes, cool people's homes through natural gas-powered air conditioning, to cook food and to produce electricity. Natural can even be used commercially, in various industries and in the transportation sector. Natural gas is truly an effective and versatile form of renewable energy.