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glaciers & ice sheets

Snout of a mountain glacier with terminal moraine
Posted inNews

Precipitation Plays a Key Role in Glacial Erosion

Javier Barbuzano, Science Writer by Javier Barbuzano 10 March 202024 February 2022

After comparing the climatic conditions at dozens of glaciers worldwide, researchers find that precipitation, not temperature, is the leading environmental factor driving glacial erosion.

El glaciar Zongo, visto en enero de 2010, se encuentra en Huayna Potosí, a unos 25 kilómetros al norte de la capital de Bolivia, La Paz.
Posted inNews

Los Incendios del Amazonas Contribuyen al Derretimiento de los Glaciares Andinos

by Michael Allen 25 February 202021 June 2023

Investigaciones recientes revelan que las emisiones de carbono negro producidas por los incendios en el Amazonas causan que los glaciares en los Andes absorban más radiación solar y se derritan más.

A science team moves equipment on sledges across the Thwaites Glacier in Antarctica in 2019.
Posted inAGU News

The Threat at Thwaites

Heather Goss, AGU Publisher by Heather Goss 24 February 202013 December 2021

This Antarctic glacier is rapidly losing mass. An international team is digging into the ice to figure out just how bad it is.

Large ice sheet on the right; water on the left
Posted inNews

“Glacial Earthquakes” Spotted for the First Time on Thwaites

Katherine Kornei, Science Writer by Katherine Kornei 17 February 202013 December 2021

These seismic events, triggered by icebergs capsizing and ramming into Thwaites, reveal that the glacier has lost some of its floating ice shelf.

Plan view of the LeConte Glacier and fjord system in Alaska
Posted inEditors' Highlights

First Field Observations of Ocean Melting a Tidewater Glacier

by Mathieu Morlighem 13 February 202010 February 2022

Using autonomous kayaks, researchers carried out measurements of water properties near the terminus of LeConte Glacier and showed that ice/ocean interactions are more complex than thought.

Forest at the foot of Hailuogou Glacier, China
Posted inNews

The Give and Take of Mercury in Glacial Landscapes

Sarah Derouin, Science Writer by Sarah Derouin 11 February 20206 February 2023

As glacial ice melts, toxic mercury is released into the environment. But a new study shows vegetation may be an effective cleanup crew.

Pinyon pines and sagebrush above the basin of Baldwin Lake in the San Bernardino Mountains
Posted inResearch Spotlights

Southern California Climate Change over 100,000 Years

Kate Wheeling, freelance science writer by Kate Wheeling 11 February 20205 June 2023

Researchers used a sediment core from a lake in California’s San Bernardino Mountains to track the effect of climate on vegetation, fire, and erosion between about 120,000 and 15,000 years ago.

Undergraduate researchers prepare to take radiation measurements during their expedition to the Greenland Ice Sheet last June.
Posted inScience Updates

Seeing the Greenland Ice Sheet Through Students’ Eyes

by Chelsea E. Snide, Lydia Gilbert, Abigail Meyer, Perry Samson, Mark Flanner and Jeremy Bassis 4 February 20205 October 2021

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.

A smiling scientist in shorts stands on a rocky outcrop near the Great Salt Lake.
Posted inNews

An Ice Sheet’s Footprint on Ancient Shorelines

Kate Wheeling, freelance science writer by Kate Wheeling 3 February 20203 November 2021

Researchers combine observations of ancient shorelines and properties of Earth’s crust to infer the size of the Laurentide Ice Sheet during the last glacial cycle.

icefin-exploring-below-sea-ice
Posted inFeatures

Diagnosing Thwaites

Javier Barbuzano, Science Writer by Javier Barbuzano 31 January 202013 December 2021

The water under a vulnerable Antarctic glacier is warming. Its catastrophic collapse could trigger a dramatic increase in global sea level.

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Coherent, Not Chaotic, Migration in the Brahmaputra-Jamuna River

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