A printable poster / demo mat to show how the amount of aerosols in the atmosphere affects sky conditions, one of the aspects citizen scientists report on via the app. (observer.globe.gov)
In relatively clean environments, clouds can only grow as large as the amount of aerosols in the atmosphere allows: They will be the limiting factor in cloud formation. (sciencedaily.com)
Secondary organic aerosols are formed through complex physical and chemical interactions between pre-existing aerosols in the atmosphere and trace organic gases emitted from both human - caused and natural sources. (pnnl.gov)