Assertion: carbon monoxide | /r/CapableOf | contribute to global warming
Facets:
Source sentences:
text: Gas mowers emit hydrocarbons and oxides of nitrogen (the principle ingredients of smog), particulate matter (damaging to the respiratory system), carbon monoxide (a poisonous gas) and carbon dioxide (contributing to global warming).
text: Carbon monoxide from automobile and industrial emissions is a dangerous pollutant that may contribute to the greenhouse effect and global warming .