Methane (CH4) is a hydrocarbon and an important greenhouse gas.
According to the IPCC’s Fourth Assessment Report in 2007, methane has a global warming potential 25 times stronger than carbon dioxide.
In general, methane is produced from:
- anaerobic (without oxygen) decomposition of waste in landfills
- animal digestion
- coal production
- decomposition of animal wastes
- incomplete fossil fuel combustion
- production and distribution of natural gas and petroleum
There is important climate feedbacks regarding methane gas.« Back to Glossary Index