Tundra

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During the 1970s, as an environmental consultant, Dr. Harding assessed the impact of the proposed Mackenzie Valley Gas Pipeline on large carnivores and furbearing mammals. His studies included habitat use, distribution and response of grizzly, wolf, beavers, marten, mink, muskrat and lynx to cleared seismic lines. He also assessed the impact of proposed gas plants and pipelines in the Mackenzie Delta and hydrocarbon exploration in the high Arctic archipelago . These studies included grizzly bear den site selection, barren ground caribou and reindeer range and habitat requirements, small mammal distribution and habitat use, Arctic fox den site selection and behaviour of Peary caribou and muskox in response to seismic surveys. For Environment Canada, Dr. Harding compiled a compendium of environmental issues associated with the proposed Mackenzie Valley Gas Pipeline for Environmental Protection Service, Environment Canada.
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After joining Environment Canada in Edmonton (1976-1978) Dr. Harding wrote the environmental specifications for  the proposed Mackenzie Valley Gas Pipeline and Alaska Highway Gas Pipeline.  These were published as the Mackenzie Valley Pipeline Environmental Code of Practice and the Alaska Highway Pipeline Environmental Code of Practice. As manager of Environment Canada's biological sciences group in Yellowknife (1978-1980), Dr. Harding was responsible for pollution impact studies throughout the Northwest Territories .  Supervising eight staff to PhD level, he directed field programs on impacts of mines in freshwater systems, developed a new marine biological program and participated on the N.W.T. Water Board Technical Committee, the Arctic Regional Ocean Dumping Committee and the Arctic Waters Advisory Committee.  He managed a $250,000 contract to review impacts on "as built" linear facilities including roads, transmission lines and pipelines.

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