Assertion: carbon's level | /r/CapableOf | increase by 6%
Facets:
value: between 1978
type: TEMPORAL
value: between 1958
type: TEMPORAL
value: from 315.8
type: OTHER
Source sentences:
text: Between 1958 and 1978, the average level of CO 2 in the atmosphere increased by 6%, from 315.8 to 334.6 ppm.