Researchers working in Canada’s northernmost communities are conducting environmental monitoring in a critical Arctic ecosystem known by multiple names: the North Water, Pikialasorsuaq, or Sarvarjuaq. This stretch of year-round open water, spanning approximately 85,000 square kilometers between Canada and Greenland, represents one of the Arctic’s most productive regions, supporting diverse wildlife including whales, seals, polar bears, and migratory seabirds.
The polynya, as these ice-free zones are called, depends partly on an ice formation called a Nares Strait arch that prevents sea ice from the Arctic Ocean from drifting southward. Climate warming has disrupted this natural mechanism—nearly two decades ago, the arch failed to form for the first time, and it now frequently does not develop. This creates a counterintuitive situation where reduced ice formation in certain areas paradoxically leads to increased ice coverage over the polynya itself during warming periods, potentially threatening the ecosystem’s productivity.
Recognizing the region’s ecological and cultural significance, both Canada and Greenland have pursued protection measures. Canada designated a marine protected area covering its portion in recent months, while earlier international proposals had recommended joint Inuit management of the entire ecosystem. However, Greenland has not yet implemented equivalent protections, with local leaders expressing concern that conservation efforts must carefully respect Indigenous rights and cultural practices.
Scientists including researchers from the University of Alberta are now developing a comprehensive monitoring system to track changes in the polynya from multiple perspectives. This effort combines scientific instruments that measure subsurface ocean conditions with knowledge held by Inuit communities who inhabit and observe the region year-round. Coordinating these efforts across the Canada-Greenland border presents logistical challenges, including passport requirements and communication gaps, but researchers emphasize that understanding both scientific data and traditional knowledge is essential for effective management of this rapidly changing environment.
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