it lost enough ice to raise the average global sea level

Although the great mass of ice looks immobile, it's actually always inching down towards the coast and the team found that this movement doubles in speed in summer - as meltwater from the surface works its way to the bottom of the ice and helps it to slide along.

อ่านต่อเพิ่มเติม> โรงเรียนบ้านหนองโก
สาระน่ารู้> หัวใจวาย