Warming opens famed Northwest Passage to navigation WE ARE REFILING THIS PREVIOUSLY TRANSMITTED REPORT AHEAD OF THE COP21 DEAL DEADLINEGlacial thawing in the Arctic is one of the most apparent effects of global warming. As icebergs continue to melt, the North Pole is becoming increasingly used as a shortcut for maritime traffic between Asia and Europe. But before ships can navigate these waters on a regular basis, ice breaker boats like the Amundsen have to clear the ice chunks that remain despite warming temperatures. A natural sound version of an AFPTV report.