Natural gas is a naturally occurring fossil fuel found in underground geological formations, primarily composed of methane alongside small amounts of higher alkanes, carbon dioxide, nitrogen, and hydrogen sulfide. Because methane is odorless and colorless, commercial odorizers like methanethiol are added to detect leaks, while its status as a potent greenhouse gas places it at the center of global climate discussions.
The history of natural gas dates back to antiquity, with ancient civilizations observing seeps, but widespread commercial use did not flourish until the development of long-distance pipelines and liquefied natural gas in the 19th and 20th centuries. Initially viewed largely as an unwanted byproduct of petroleum production and frequently flared or vented, the resource eventually transformed into a cornerstone of modern energy generation.
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SubscribeBefore reaching consumers, raw natural gas undergoes rigorous processing to remove impurities and heavier hydrocarbons such as propane and butane. While burning natural gas emits fewer toxic pollutants and less carbon dioxide than coal or oil, fugitive emissions and widespread infrastructure development continue to drive significant greenhouse gas emissions worldwide.
Unconventional extraction methods, particularly hydraulic fracturing for shale gas, have revolutionized global energy markets and propelled nations like the United States to top producer status. However, experts warn that without strict fugitive gas prevention and carbon capture technologies, expanding gas infrastructure risks creating stranded assets and accelerating climate change.