Biogas
Biogas typically refers to a (biofuel) gas produced by the anaerobic digestion or fermentation of organic matter including manure, sewage sludge, municipal solid waste, biodegradable waste or any other biodegradable feedstock. Biogas is comprised primarily of methane and carbon dioxide.

Depending on where it is produced, biogas is also called:
    • swamp gas
    • marsh gas
    • landfill gas
    • digester gas

Biogas can be used as fuel for generating electricity.