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paleoclimatology & paleoceanography

Diagram from the study.
Posted inEditors' Highlights

Successful Liquid Lake Conditions in a Cold Martian Paleoclimate

by Alberto Montanari 8 January 20268 January 2026

Simulations from a new lake model explain how liquid water could have been maintained over Mars in a cold climate, thus resolving a critical scientific gap in our understanding of Mars’ early history.

Microscopic marine algae known as coccolithophores covered in calcium carbonate shells.
Posted inResearch Spotlights

How a Move to the Shallows 300,000 Years Ago Drove a Phytoplankton Bloom

by Nathaniel Scharping 5 January 20265 January 2026

And what that could mean for today’s ocean.

A healthy coral reef showing a great diversity of species. Small fish swim among the coral.
Posted inAGU News

Preserving Corals to Study the Past and Document the Present

by Caryl-Sue Micalizio 1 January 20261 January 2026

Corals hold valuable hints about our planet’s climate history, and they’re continuing to document today’s changing ocean. Scientists are working to preserve and protect these reefs of evidence.

A pale gray rock shows an impression of multiple curved lines.
Posted inNews

The Long and the Weak of It—The Ediacaran Magnetic Field

Katherine Kornei, Science Writer by Katherine Kornei 9 December 20259 December 2025

A roughly 70-million-year interval of anomalously weak magnetic field during the Ediacaran period could have triggered atmospheric changes that supported the rise of macroscopic life.

Aerial view of a wide blue ice area in the Transantarctic Mountains, where ancient Antarctic ice cores or fragments can be found for climate research
Posted inNews

New Lessons from Old Ice: How We Understand Past (and Future) Heating

by Mariana Mastache-Maldonado 24 November 202524 November 2025

Fragments of blue ice up to 6 million years old—the oldest ever found—offer key insights into Earth’s warming cycles. Researchers are using these ancient data to refine models of our future climate.

World map with ocean temperature patterns and labeling indicating the Indo-Pacific Warm Pool
Posted inNews

Ocean Tunneling May Have Set Off an Ancient Pacific Cooldown

by Larissa G. Capella 18 November 202518 November 2025

The ocean’s depths cooled off about 1.5 million years ago, and scientists think watery tunnels from the south may be to blame.

Five expedition team members climb an icy surface.
Posted inNews

Pamir Glacier Expedition Returns with High-Elevation Ice Cores

by Grace van Deelen 17 November 202517 November 2025

The three glacial cores will unlock mysteries about past climate and weather patterns in central Asia.

Daniel James instala un monitor de tasa de goteo en una estalagmita de flujo en la cueva Grutas Tzabnah en el estado de Yucatán, México, como parte de una campaña de monitoreo de cuevas.
Posted inNews

Grandes Sequias Coincidieron con el Colapso Maya Clásico

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 17 November 202517 November 2025

El entendimiento de cómo las ciudades individuales respondieron al estrés climático ayudará a crear imágenes holísticas de cómo estas sociedades funcionaban.

太阳从海面升起。紫色的云朵在天空中飘荡。
Posted inResearch Spotlights

古气候模式为未来变暖提供线索

by Rebecca Owen 6 November 20256 November 2025

一项新研究分析了过去1000万年的海洋表面温度数据,以预测未来变暖的可能走向。

An image of Earth from the International Space Station shows clouds floating over the ocean, with the darkness of space in the background.
Posted inNews

Earth System Engineers Take Planetary Alterations to Extreme Scales

by Grace van Deelen 29 October 202529 October 2025

A new framework argues Earth scientists should employ the concept of ecosystem engineering across geologic time and space.

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New River Chemistry Insights May Boost Coastal Ocean Modeling

9 January 20269 January 2026
Editors' Highlights

Central China Water Towers Provide Stable Water Resources Under Change

9 January 20269 January 2026
Editors' Vox

Hydrothermal Circulation and Its Impact on the Earth System

3 December 20253 December 2025
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