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Pollutants re-surfacing in Canadian Arctic

With the warming climate, harmful chemicals long banned in Canada, are now showing up in the air, soil and water in the Arctic in Canada and elsewhere. Researcher Hayley Hung studies the levels of chemicals known as Persistent Organic Pollutants (POPs) and her work is pointing to higher than expected concentrations of three of these dangerous substances. Marc Montgomery speaks with Dr. Hung about her findings and its implications for people living in Arctic regions.( Photo: AP Photo/Subhankar Banerjee )

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