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High
above the Arctic Circle, polar bears inhabit some of the most remote and
seemingly pristine territory on earth. Yet, scientists have discovered
that these bears are highly contaminated with industrial chemicals, including
toxic, long-lived PCBs. There is no way to discover exactly how the PCBs
made their way to the Arctic. But drawing from historical accounts and
scientific studies it is possible to imagine the path of an individual
PCB molecule. Though the specific route and events in this journey are
hypothetical, the plot is scientifically plausible.
Based on the chapter "To
the Ends of the Earth," from Our Stolen Future by Theo
Colborn, Dianne Dumanoski and John Peterson Myers

Roll over images for locations.
Illustration by Bryan Christie
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