Why a fast-shrinking Antarctic glacier has sparked fears of ‘catastrophic’ sea level rise

Hektoria glacier on the Antarctic Peninsula lost nearly half its size astonishingly rapidly. Scientists have now discovered the reasons behind its rapid retreat and say it raises fears for sea level rise.

​ Hektoria glacier on the Antarctic Peninsula lost nearly half its size astonishingly rapidly. Scientists have now discovered the reasons behind its rapid retreat and say it raises fears for sea level rise. Read More Breaking News, Latest News and Videos | CNN