Black carbon is a bigger cause of the melting of the polar ice cap in the Arctic than carbon dioxide due to its effect on the albedo.
blˈæk kˈɑːɹbən ɪz ɐ bˈɪɡɚ kˈɔːz ʌvðə mˈɛltɪŋ ʌvðə pˈoʊlɚɹ ˈaɪs kˈæp ɪnðɪ ˈɑːɹktɪk ðɐn kˈɑːɹbən daɪˈɑːksaɪd dˈuː tʊ ɪts ɪfˈɛkt ɔnðɪ ælbˈiːdoʊ.