Assertion: methane hydrate | /r/HasProperty | abundant
Facets:
value: according to the department of energy
type: OTHER
value: on the seafloor
type: LOCATION
value: on under
type: LOCATION
Source sentences:
text: According to the Department of Energy, methane hydrates are abundant on the seafloor and under permafrost, and they contain “perhaps more organic carbon that all the world’s oil, gas, and coal combined.