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Ocean sediments are a massive storehouse for the potent greenhouse gas methane. A logical suspect for arctic methane emissions is degrading hydrates. There are several other potential methane sources. The goal of this research study was to fingerprint the source of methane in the Arctic Ocean to determine if ancient methane was being liberated from the seafloor and if that methane survives to be emitted to the atmosphere. [Source: University of Rochester]
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