Tag / greenland

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  • Glaciers Provide Insight on Norse Migration

    Recent research on the dynamics of glaciers in the Arctic over the last millennium has altered understandings of climate history and of human migrations in this inhospitable region. Glaciers in Baffin Island and western Greenland reached their maximum extent during the time of Medieval Warm Period,  roughly 950-1250,  instead of the Little Ice Age of the sixteenth through…

  • Roundup: Gloomy Glaciologist, Icy Blasts, and New Models

    Glaciologist Causes Chills with Not So Icy Predictions “How does being the one to look at the grim facts of climate change most intimately, day in and day out, affect a person? Is Box representative of all of the scientists most directly involved in this defining issue of the new century? How are they being…

  • Glacier Dynamics May Not be Fully Understood

    Jakobshavn Isbræ, an outlet glacier off the west coast of Greenland, is losing mass faster than previously thought, due to increased melt water passing through it, as reported in a new paper. The glacier’s rapid trajectory of thinning may well represent the Greenland Ice Sheet (GrIS) ice loss rate in the near future, which could mean faster sea…

  • Courtesy of BBC

    Political Tug of War Over Greenland’s Mining Industry

    Greenlanders are engaging in a fierce ongoing debate about whether to develop the country’s onshore mineral resources into a robust mining industry. Since gaining political autonomy from Kingdom of Denmark in 2009, the government of the world’s largest non-continental island has long been brainstorming how to solve its increasing financial woes. When a 2008 US Geological…

  • Courtesy of Wikipedia

    Roundup: Grounding Lines, Fault Lines and Algae-filled Pits

    NASA reports on the Hidden Melting of Greenland’s Glaciers “What’s causing this ‘big thaw’? Rignot’s team found that Greenland’s glaciers flowing into the ocean are grounded deeper below sea level than previously measured. This means that the warm ocean currents at depth can sweep across the glacier faces and erode them.“In polar regions, the upper layers…

  • Artist Diane Burko Ties Together Art and Science

    The nexus between art and science first featured in artist and photographer Diane Burko’s work in 2006. Since then, Burko has traveled around the world to capture monumental landscapes and features. She has spent time in Norway, Greenland and the Antarctic Peninsula, documenting and bearing witness to the global disappearance of glaciers.  Burko agreed to…

  • Roundup: Cyanobacteria, Glacier Calving and Glacier Fluctuations

    Arctic biocrust cyanobacterial communities “In the polar regions cyanobacteria are an important element of plant communities and represent the dominant group of primary producers. They commonly form thick highly diverse biological soil crusts that provide microhabitats for other organisms. Cyanobacteria are also producers of toxic secondary metabolites. The north-west coast of Spitsbergen, are able to…

  • Glacier Retreat Brings New Islands

    In some parts of the world, new islands are forming due to glacier retreat. Glaciers, dynamically responding to the change in temperature and precipitation, reveal the big picture of climate variability and change. During the Little Ice Age (LIA) with cooler temperatures, glaciers around the world grew substantially, from approximately 1350 to 1850. It was…

  • Glacial Outburst Floods in Greenland Discharge Mercury

    Mercury contamination has long been a threat to animal carnivores and human residents in the Arctic. Mercury exports from river basins to the ocean form a significant component of the Arctic mercury cycle, and are consequently of importance in understanding and addressing this contamination.  Jens Søndergaard of the Arctic Research Centre of Aarhus University, Denmark…

  • Roundup: Calving, ‘Record grooves’ and Story Maps

    Calved Greenland Iceberg  “Iceberg calving is ultimately related to the mechanical failure of ice. However, predicting mass loss from calving events remains challenging because calving takes on diferent forms under different conditions. For example, large tabular icebergs sporadically detach from freely foating ice tongues with many years of quiescence between major calving events” Read more…