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A schematic of the mechanism that explains why shallow lakes are more sensitive to shallow water pollution with Arsenic than deep lakes.
Posted inEditors' Highlights

Understanding Enhanced Arsenic Pollution in Shallow Lakes

by Marc F. P. Bierkens 29 November 202225 January 2023

A new study explains why the arsenic that has accumulated in lake bottom sediments is more harmful to the lake ecosystems in shallow lakes.

A crew of about a dozen people handle a sediment core at their scientific drilling site at Chew Bahir in Ethiopia.
Posted inNews

Did a Chaotic Climate Drive Human Evolution?

by Elise Cutts 7 November 20227 November 2022

A new 620,000-year climate record from East Africa reveals dramatic swings between wet and dry conditions that may have influenced human evolution.

A pile of unprocessed coal briquettes is photographed from above. The image is in shades of gray and black and is more illuminated in the center than along the edges.
Posted inNews

Lake Sediments Record North Carolina’s Coal Legacy

by Kimberly M. S. Cartier 14 October 202214 October 2022

Coal ash–polluted lakes are in residential and recreational areas, invoking concern for the health of local residents and ecosystems.

This photograph shows the rocky shore of a placid blue lake in front of green forested mountains. The shore is strewn with white and brown rocks and driftwood. A person dressed in black walks along the shore carrying a fishing rod, and there is a small boat visible on the left side of the image.
Posted inResearch Spotlights

The Fate of a Lake After a Dramatic Mining Disaster

by Sarah Stanley 9 September 202212 October 2022

Researchers tracked long-term sediment dynamics in Canada’s Quesnel Lake following the 2014 failure of a dam that spilled record-breaking amounts of contaminated mining waste.

A red tide washes over a Florida beach.
Posted inFeatures

Harmful Algal Blooms: No Good, Just the Bad and the Ugly

by James E. Silliman 9 September 202214 September 2022

Natural and human factors are leading to larger, more frequent, and longer-lasting algae blooms. Recent research is increasingly revealing the scope of the problem and informing potential responses.

Photos of the sample locations on Khumbu Glacier and Lobuche Glacier.
Posted inEditors' Highlights

Glacier Advance and Retreat: Insights From the Top of the World

by Mikaël Attal 7 September 202229 September 2022

New dating of glacial features reveals predictable glacier behavior in response to climate warming and cooling in the Everest region in the past 8,000 years.

Two young people riding aboard a boat pick through mud with their hands in search of meteorites.
Posted inNews

Community Scientists Recover Micrometeorites from Lake Michigan

by Katherine Kornei 15 August 202215 August 2022

A team of scientists, educators, and teenagers discovered the objects, some of which may have been delivered by a fireball that streaked across the sky in 2017.

Lake Carezza with evergreens and snowy mountains in the background.
Posted inResearch Spotlights

Earth’s Lakes Emit Less Methane Than Previously Thought

by Sarah Stanley 4 August 202229 September 2022

Although the total surface area of Earth’s lakes emits less methane than previously believed, it is still among the largest natural methane sources.

Photo of a scientist drilling into lake ice to take a sample.
Posted inEditors' Vox

A Future Without Ice Cover

by Steven Sadro and Marguerite A. Xenopoulos 11 July 202221 July 2022

Winter is fading away, but the answers may be beneath the ice; a new collection on winter limnology tackles the unknowns.

A reservoir surrounded by trees with two people in a canoe
Posted inNews

The Domino Effect of Freshwater Suffocation

by Danielle Beurteaux 11 July 202227 October 2022

As lakes and reservoirs become anoxic, they can promote poor water quality downstream.

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RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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