The vanishing ice wall of Canada's northern frontier
In short: As Arctic sea ice disappears, a critical maritime gateway is opening up. This film follows the high-stakes missions of legal experts and flight crews monitoring a melting frontier where national sovereignty meets global competition.
The Northwest Passage, once protected by thick sea ice, saw its coverage plummet to just 24% in October 2006—a sharp decline from the previous ten-year average of 44%. This environmental shift has transformed a natural barrier into a strategic corridor for international interests.
With over 25% of the world's known oil and mineral reserves at risk, Canada is under pressure from powers like the U.S. and Russia. The documentary highlights how Canadian forces use advanced sonars and magnetic anomaly detectors to monitor sub-surface activity and defend their 12-nautical-mile territorial limits.
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- Summary by Intellect · source: Northwest Passage: The Strategic Defense of a Melting Frontier | SLICE EARTH | FULL DOC
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