The Ekati Diamond Mine, located in the Northwest Territories of Canada, consists of the Core Zone, which includes the current operating mine and other permitted kimberlite pipes, as well as the Buffer Zone, an adjacent area hosting kimberlite pipes having both development and exploration potential.

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Some elevated levels have been found in soil samples 25 miles northwest of the plant, although no plans were reported to expand the safety zone.

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One example of continuous observation of ecological change is provided by the Nenets in Northwest Russia, who report increases in the height of willow and alder shrubs in the tundra zone.

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