Aerosols modify the properties of clouds through a subset of the aerosol population called cloud condensation nuclei.
ˈɛɹəsˌɑːlz mˈɑːdᵻfˌaɪ ðə pɹˈɑːpɚɾiz ʌv klˈaʊdz θɹuː ɐ sˈʌbsɛt ʌvðɪ ˈɛɹəsˌɑːl pˌɑːpjʊlˈeɪʃən kˈɔːld klˈaʊd kɑːndɛnsˈeɪʃən nˈuːklɪi.