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Geosciences

Discovering Glass Sponge Reefs (Ask NRCan)

In the 1980s, scientist Kim Conway was part of an expedition to map the continental shelf in the Pacific Ocean. During this mission, he made a fascinating and unexpected discovery – unique reefs that were long thought to be extinct. Kim explains the significance of this discovery and what it means for science.

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Mining value from waste: a potential game changer

Historically, much of the waste from mining activities has posed long-term liability issues with little or no economic value. But what if mining companies could recover the metals, like gold, and then sell them? The answer, these days, is obvious: they could reduce their environmental impact and, at the same time, contribute to a green economy.

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Mining Value from Waste (Byte-Sized Science)

Terry Cheng, hydrometallurgist and research scientist at CanmetMINING is reprocessing mining wastes as resources — particularly gold tailings. He is examining options to reprocess and repurpose mine wastes to reduce environment impacts and recover valuable byproducts such as critical and strategic metals (e.g. gold, about two grams per tonne).

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Studying Permafrost in the Canadian Arctic (Byte-Sized Science)

Permafrost scientists Stephen Wolfe and Peter Morse travelled to the western Canadian arctic to observe permafrost conditions along the Inuvik to Tuktoyaktuk highway. The highway must be constantly maintained to ensure safe driving conditions over the permafrost. Stephen explains the type of geological studies he and Peter conducted to better understand permafrost conditions.

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