Assertion: air pollution's effect | /r/HasProperty | serious
Facets:
value: very
type: DEGREE
Source sentences:
text: The effects of acid rain on the environment can be very serious even.
text: Considering greenhouse gases as an air pollutant, the sweeping effects of human-caused climate change on the environment, already considered to be serious, are expected to become catastrophic to coastal cities around the world within decades.