A-new-study-conducted-by-Prof-Kwasi-Appeaning-Addo-the-Director-Institute-for-Environment-and-Sanitation-Studies-of-the-University-of-Ghana-reveals-that-Ghana-will-lose-its-major-state-monuments-including-the-Christiansborg-Castle-otherwise-called-the-Osu-Castle-former-seat-of-government-the-Kwame-Nkrumah-Mausoleum-and-the-Independence-Square-to-coastal-erosion-in-the-future-if-appropriate-measures-are-not-taken