Assertion: chlorofluorocarbon | /r/HasProperty | powerful greenhouse gases
Facets:
value: since the cfcs
type: TEMPORAL
value: equally
type: DEGREE
Source sentences:
text: Since the CFCs themselves are equally powerful greenhouse gases, the mere substitution of HFCs for CFCs does not significantly increase the rate of anthropogenic climate change, but over time a steady increase in their use could increase the danger that human activity will change the climate.