Methane

Methanogenesis: Methanogenesis refers to the production of methane by microorganisms in anaerobic environments such as wetlands and the digestive systems of animals.

Landfills: Landfills are sites where waste materials are disposed of and decompose over time. They produce methane as organic matter breaks down without oxygen.

Permafrost: 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.