It covers an area of more than 44 million square kilometers, about 30% of Earth's total land area and 8% of Earth's total surface area.
ɪt kˈʌvɚz ɐn ˈɛɹiə ʌv mˈoːɹ ðɐn fˈoːɹɾi fˈoːɹ mˈɪliən skwˈɛɹ kɪlˈɑːmɪɾɚz, ɐbˌaʊt θˈɜːɾi pɚsˈɛnt ʌv ˈɜːθz tˈoʊɾəl lˈænd ˈɛɹiə ænd ˈeɪt pɚsˈɛnt ʌv ˈɜːθz tˈoʊɾəl sˈɜːfɪs ˈɛɹiə.