Assertion: drought | /r/CreatedBy | air pollution
Facets:
value: probably
type: DEGREE
Source sentences:
text: In 2002, after the phenomenon of global dimming was discovered, a CSIRO study suggested that the drought was probably caused by air pollution generated in Eurasia and North America, which changed the properties of clouds over the Atlantic Ocean, disturbing the monsoons and shifting the tropical rains southwards.