ɔnðɪ ˈʌðɚ hˈænd, ˈʌðɚ stˈʌdiz hæv ˈɑːɹɡjuːd fɚðə lˈɔːɹəntˌaɪd ˈaɪs ʃˈiːt ɪn nˈɔːɹθ ɐmˈɛɹɪkə bˌiːɪŋ ðə dˈɑːmɪnənt sˈoːɹs ʌv ðɪs mˈɛltwɔːɾɚ pˈʌls.
On the other hand, other studies have argued for the Laurentide Ice Sheet in North America being the dominant source of this meltwater pulse.