Assertion: energy footprint | /r/CapableOf | increase to 6.7 billion
Facets:
value: in 1999
type: TEMPORAL
value: by the end of the period
type: TEMPORAL
value: from 2.5 billion hectares
type: OTHER
Source sentences:
text: The energy footprint increased from 2.5 billion hectares in 1961 to 6.7 billion in 1999, the fastest-growing component of the overall footprint—and, by the end of the period, very much the biggest.