简介：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 .
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 .
《國家地理.水下地球earthunderwater》 ，发行于2010年（美国），一部记录片。 讲述了：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 .
