Scientists long eschewed studying lakes in winter, expecting that cold temperatures and ice cover limited activity below the surface. Recent findings to the contrary are changing limnologists’ views.
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Posted inNews
Water Ice Lurks in Young—but Not Too Young—Lunar Craters
Using topographic data, researchers have estimated the ages of water ice–containing craters near the Moon’s poles and ruled out volcanism as being a primary route for water delivery.
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The Massive Ice Avalanches of Mars
Ice avalanches may have traveled at speeds of up to 80 meters per second.
Posted inResearch Spotlights
How Will Climate Change Affect Arctic Stream Slime?
Rising temperatures and thawing permafrost will change nutrient concentrations in Arctic waterways, which will influence the growth of biogeochemically important biofilms.
Posted inResearch Spotlights
Organic Matter in Arctic River Shows Permafrost Thaw
Samples from two waterways in northern Siberia—the main stem of the Kolyma River and a headwater stream in the river’s watershed—indicate the differing sources and ages of carbon they contain.
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River Ice Is Disappearing
Over the past 3 decades, the persistence of river ice has decreased by almost a week. The decrease in ice has important implications for ecology, climate, and the economy.
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Antarctic Ice Cores Might Be Older Than Dirt
Using cosmogenic nuclide dating, scientists determined a 10-meter core just below the surface to be over a million years old.
Posted inScience Updates
Seeing the Greenland Ice Sheet Through Students’ Eyes
A team of students and faculty advisers revisited the site of pioneering geosciences expeditions from the 1920s, looking to introduce young researchers to polar science.
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Jupiter’s Galilean Moons May Have Formed Slowly
A new model is the first to simultaneously explain many of the moons’ characteristics, including their mass, orbits, and icy composition
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Grim Report on Climate Change Impacts on Oceans and Cryosphere
A new report by the Intergovernmental Panel on Climate Change states that bold actions can prevent significantly worse impacts.