Cryoconite: The dark biological secret of the cryosphere

Cryoconite is granular sediment found on glacier surfaces comprising both mineral and biological material. Despite long having been recognised as an important glaciological and biological phenomenon cryoconite remains relatively poorly understood. Here, we appraise the literature on cryoconite for t...

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Bibliographic Details
Published in:Progress in Physical Geography: Earth and Environment
Main Authors: Cook, J.M., Edwards, A., Takeuchi, N., Irvine-Fynn, T.
Other Authors: Clifford, N
Format: Article in Journal/Newspaper
Language:English
Published: SAGE Publications 2016
Subjects:
Online Access:https://eprints.whiterose.ac.uk/94604/
https://eprints.whiterose.ac.uk/94604/1/Cook%202015%20PIPG%20Accepted%20version.pdf
https://doi.org/10.1177/0309133315616574
Description
Summary:Cryoconite is granular sediment found on glacier surfaces comprising both mineral and biological material. Despite long having been recognised as an important glaciological and biological phenomenon cryoconite remains relatively poorly understood. Here, we appraise the literature on cryoconite for the first time, with the aim of synthesising and evaluating current knowledge to direct future investigations. We review the properties of cryoconite, the environments in which it is found, the biology and biogeochemistry of cryoconite, and its interactions with climate and anthropogenic pollutants. We generally focus upon cryoconite in the Arctic in summer, with Antarctic and lower latitude settings examined individually. We then compare the current state-of-the-science with that at the turn of the twentieth century, and suggest directions for future research including specific recommendations for studies at a range of spatial scales and a framework for integrating these into a more holistic understanding of cryoconite and its role in the cryosphere.