Using paleolimnological methods to assess environmental change across Canada

The Canadian landscape has an abundance of lakes under pressure from multiple stressors. Lakes are sentinels of environmental change, as they archive changes occurring both within the lake, and in the surrounding terrestrial ecosystems within its watershed. Paleolimnology, that is, the study of lake sediment cores to reconstruct past climatic and environmental changes, helps us

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Impact of changing hydrology on lake water quality

Kristen Coleman, a PhD candidate in Professor Jennifer Korosi’s lab and a Weston Family Northern Scientist, studies impacts to lake water quality as a result of permafrost thaw near the southern extent of permafrost in the Northwest Territories (NT), Canada. Here permafrost is sporadic, occurring beneath 10-50% of the landscape. She focuses on the impacts

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Clear as Mud: Tracking Arctic Permafrost Thaw Using Lake Sediments

The mud at the bottom of a lake isn’t just mud, it contains within it clues that, once decoded, tell us how the environment has changed over time. Clues can be anything that sinks to the bottom of the lake and is deposited into the mud. Often, this includes things that were living (and died)

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