Study Links Glaciers, Warmer Waters

New evidence is reported that rising global temperatures could have rapid effects on the Antarctic ice pack and on ocean levels. It appears that ice sheets floating on the ocean at the edge of Antarctica keep glaciers in place. If rising temperatures cause the ice sheets to collapse — as happened at one spot a couple of years ago — glaciers could surge into the surrounding ocean and cause the ocean to rise rapidly. NPR's Richard Harris reports.

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