Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Methane is a potent greenhouse gas (GHG) that is released into the atmosphere through natural processes and human activities. It has a much higher warming potential than carbon dioxide, although its atmospheric concentration is lower.
Related terms
Methanogenesis: Methanogenesis refers to the production of methane by microorganisms in anaerobic environments such as wetlands and the digestive systems of animals.
Permafrost is permanently frozen ground found in Arctic regions. As permafrost thaws due to climate change, it releases trapped methane, further contributing to global warming.