Used attributively in phrases like "methane emissions" to denote relation to or content of methane.
Definitions
methanenoun
A colorless, odorless flammable gas that is the simplest alkane and the main component of natural gas.
Methane is often used as a fuel source for heating and electricity generation.
A greenhouse gas that contributes to global warming, produced by natural processes and human activities such as agriculture and fossil fuel extraction.
The release of methane from livestock farming is a significant environmental concern.
methaneadjective
Relating to, consisting of, or containing methane.
Methane leaks from pipelines pose a serious environmental risk.