One of the biggest icebergs ever just broke off Antarctica

One of the biggest icebergs ever just broke off Antarctica

By PBS NewsHour
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A huge iceberg -- twice as large as Lake Erie -- has broken away from the Larsen C ice shelf in Antarctica, an event that researchers have been anticipating for months. Science correspondent Miles O'Brien joins Judy Woodruff to discuss whether it’s linked to climate change and what it means for sea-level rise.