Glaciology
Glacial Flour Makes Some Lakes Turquoise
Caitlin Dempsey
Glacial flour, the fine dust created as glaciers move over land, turns lakes a turquoise color by reflecting blue and green light.
Understanding Glacier Grounding Lines
Caitlin Dempsey
Grounding lines are the boundaries where glaciers and ice sheets transition from resting on solid ground to floating on seawater.
The Rise of Proglacial Lakes
Caitlin Dempsey
Glacial retreat in Alaska's Yakutat Foreland has fueled rapid growth of proglacial lakes, doubling their size in 40 years as seen in Landsat imagery.
Venezuela Becomes the First Country to Lose its Glaciers
Caitlin Dempsey
Venezuela became the first country to lose all of its glaciers as the last remaining ice on Pico Humboldt shrank to less than two hectares.
Understanding Fast Ice in Polar Ecosystems and Climate Dynamics
Caitlin Dempsey
Fast ice, found in both polar regions, is sea ice that attaches to coasts, icebergs, ice shelves, or the ocean floor.