Assertion: methane's concentration | /r/HasProperty | shy of 2 parts per million
Facets:
value: by volume
type: OTHER
value: a little bit
type: DEGREE
Source sentences:
text: Its concentration in the modern atmosphere is a little bit shy of 2 parts per million by volume (ppm), compared to roughly 0.72 ppm in 1750 or 0.38 ppm in typical glacial conditions.