The photograph taken in 1928, above, shows how the Upsala Glacier, part of the South American Andes in Argentina, used to look. The ice on the Upsala Glacier today, shown in 2004 below, is retreating at least 180 ft. per year 上图于1928年拍摄,显示当时的乌帕萨拉冰川。它是南美洲安第斯山脉在阿根廷境内的一部分。下图是2004年拍摄的乌帕萨拉冰川。它正以每年至少180英尺的速度后退。 |