Assertion: atmospheric methane | /r/CapableOf | create a greenhouse effect
Facets:
value: on titan's surface
type: LOCATION
Source sentences:
text: Atmospheric methane creates a greenhouse effect on Titan's surface, without which Titan would be far colder.
text: The moon would be much colder, were it not for the fact that the atmospheric methane creates a greenhouse effect on Titan’s surface.