Assertion: aerosol's effect | /r/HasProperty | towards lower end of estimates
Facets:
Source sentences:
text: In the 2010s different lines of evidence, such as observations from a "natural experiment" of sulfate emissions from a fissure eruption in Iceland (like the 1783 calamity but smaller), showed that the effect of sulfates in "brightening" clouds was towards the lower end of estimates.