Assertion: aerosol's cfc | /r/HasProperty | harmful
Facets:
value: to the ozone layer
type: TRANSITIVE-OBJECT
Source sentences:
text: After scientists concluded that CFCs were harmful to the ozone layer, 70 nations signed the Montreal Protocol, an agreement to phase out CFC use over the next decade.
text: After scientists concluded that CFCs were harmful to the ozone layer, 70 nations signed the Montreal Protocol, an agreement to phase out CFC use over the next decade.