《國家地理.水下地球earthunderwater》是2010年上映的一部 纪录作品,来自美国, 支持高清在线播放,画质清晰不卡顿, 适合手机和电脑在线观看。
Imagine a world where sea levels have risen by 20 feet. Cities flood and coastal regions disappear. Travel to Greenland where scientists are investigating if this nightmare could become a reality .