Assertion: natural gas's amount | /r/CapableOf | emit into the atmosphere
Facets:
value: via fossil fuels
type: MANNER
Source sentences:
text: Scientists have been vastly underestimating the amount of methane humans are emitting into the atmosphere via fossil fuels," scientists from the University of Rochester in New York, who led the study, said in a statement.
text: In the study, researchers measured methane levels in ancient air samples from the Greenland ice sheet and found that scientists have been "vastly underestimating" the amount of methane humans are emitting into the atmosphere today via fossil fuels.