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.
ice
Posted inNews
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.
Posted inScience Updates
New Earth Orbiter Provides a Sharper Look at a Changing Planet
A first look at data from NASA’s laser altimeter mission ICESat-2 reveals very high resolution 3-D profiles of ice on land and sea, forests, and shallow bodies of water.
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Drilling into the Past to Predict the Future
Climate change is at the center of a remarkable international drilling operation into Antarctica’s Ross Ice Shelf.
Posted inEditors' Vox
Ceres: Evolution of the Asteroid Belt’s Icy Giant
A new special collection in JGR: Planets explores how ice has played a key role in the development of the landscape on the surface of Ceres.
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Vintage Radar Film Tracks What’s Beneath Antarctic Ice
The newly digitized data double the timescale of ice-penetrating radar monitoring in some of the fastest changing areas of Antarctica.