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paleoclimatology & paleoceanography

Three soil blocks from a subice core taken in Camp Century, Greenland
Posted inNews

Greenland Was Much Greener 416,000 Years Ago

by Bill Morris 31 August 20238 September 2023

A fresh analysis of a historic ice core has revealed evidence of a much smaller ice cap.

A blue and white glacier over water
Posted inNews

Evidence of Earth’s Oldest Glaciers Found in South Africa

by Nathaniel Scharping 17 August 202317 August 2023

The ancient glaciers hint at an Archaean Earth that may have looked similar in some ways to our own time.

Illustration of early hominins arriving in a multibiome mosaic landscape
Posted inNews

Humans Adapted to Diverse Habitats as Climate and Landscapes Changed

by Deepa Padmanaban 10 July 202331 October 2023

Long-term changes in Earth’s climate affected the dispersal of human ancestors and their adaptation to diverse habitats, a new study finds.

Small waves crashing on the coast with a city skyline in the background.
Posted inNews

Supersized Potholes Discovered off South African Coast

by J. Besl 8 June 20238 June 2023

Curious circular pits off South Africa’s Eastern Cape coast are larger than any similar feature previously recorded. Their origin remains a morphological mystery.

View through a microscope of yellow spheres and white shapes with thin lines
Posted inNews

Marine Life May Be Headed to Higher Latitudes

by Mackenzie White 19 April 202319 April 2023

Researchers tracked plankton through a changing climate over 8 million years. Now, that knowledge is helping scientists understand the coming effects of warming oceans.

A layered tan-colored rock on a table with a ruler and quarter for scale.
Posted inNews

Wisconsin Stalagmite Records North American Warming

by Stacy Kish 6 April 20236 April 2023

A speleothem has revealed rapid periods of warming across the interior of the continent during the last glacial period, corresponding to similar events recorded in Greenland ice.

Sediments of various sizes sit on the seafloor. A blossoming, white sunbeam flares against the blue backdrop of the sea.
Posted inNews

Deep-Sea Sand and Where to Find It

by Emily Shepherd 30 March 202314 March 2024

Ancient underwater avalanches carried sand into the ocean’s abyss during a time when some least expected it.

A long cylinder of ice on a table
Posted inNews

Ice Cores Record Long-Ago Seasons in Antarctica

by Caroline Hasler 17 March 202316 May 2023

Researchers used ice core data to reconstruct seasonal temperatures throughout the Holocene. The results link especially hot summers with patterns in Earth’s orbit.

Photos of rocks on Mars.
Posted inEditors' Highlights

Martian Rocks May Record Ancient Wind Directions

by Scott Guzewich 14 March 20236 March 2023

Mars 2020 Perseverance Rover images of abraded surface rocks may retain records of ancient wind directions, providing important ground-truth to our understanding of Mars’ recent climate history.

Close-up view of bright green algae fronds
Posted inScience Updates

Making Sense of the Great Barrier Reef’s Mysterious Green Donuts

by Jody Webster, Mardi McNeil, Helen Bostock, Luke Nothdurft and Maria Byrne 9 March 202321 December 2023

Researchers set sail to the Great Barrier Reef to study how ring-shaped algae deposits formed and evolved, what feeds them, and the diversity of creatures that call them home.

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Features from AGU Publications

Research Spotlights

Unveiling What’s Under the Hood in AI Weather Models

30 September 202530 September 2025
Editors' Highlights

New Evidence for a Wobbly Venus?

29 September 202525 September 2025
Editors' Vox

All Publish, No Perish: Three Months on the Other Side of Publishing

29 September 202525 September 2025
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