Assertion: fuel cell's potential | /r/HasProperty | significant force
Facets:
value: in the development of the technology
type: TEMPORAL
value: over the past 30 years
type: TEMPORAL
Source sentences:
text: The potential for fuel cells to provide zero or near-zero emissions has been a significant force in the development of the technology over the past 30 years, and is drawing increasing attention to the technology today.