An air quality specialist says the wrong metrics are being used when discussing climate change.

Frank Mitloehner at the University of California Davis tells Brownfield methane does not have the same lifespan as other greenhouse gasses.

“Methane is very different from other greenhouse gasses, such as CO2 and nitrous oxide, because it has a very short lifespan.”

He says methane’s lifespan is only 12 years compared to CO2 which can last a thousand and accounting for how individual gases behave can skew emission metrics.

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