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interglacials

Dozens of ice cores—long, thin cylinders—are stored on a metal shelf and seen from the front, so they look like circles.
Posted inResearch Spotlights

When Ice Ages End, Ocean Circulation Fine-Tunes Ocean Heat

Sarah Stanley, Science Writer by Sarah Stanley 14 April 202514 April 2025

New Antarctic ice core data bolster model predictions of ocean heat content during glacials and interglacials.

Two people wearing hard hats are silhouetted by the Sun rise in the distance as they look out over the ocean from a research vessel.
Posted inScience Updates

Unlocking Climate Secrets of Hawai‘i’s Drowned Reefs

by Jody M. Webster and Christina Ravelo 11 April 202511 April 2025

Researchers set sail to study sea levels, climate, ecosystem responses, and volcanic histories over the past 500,000 years, using an innovative seabed drill to sample fossilized reefs off Hawai‘i.

Photo of the Himalayas.
Posted inEditors' Highlights

Sediment Dampens the Impact of Glaciation on Cenozoic Denudation

by Ann Rowan 9 September 20244 September 2024

Rates of continental-scale sediment flux and denudation are similar between glacial and interglacial periods when the aggradation of glacier-eroded sediment inhibits fluvial erosion downstream.

A glacier between two dark-colored mountains. A snowy mountain reaching up into the clouds is in the background, and blue seawater is in the foreground.
Posted inResearch Spotlights

A Million Years Without a Megaslide

by Rebecca Owen 19 April 202419 April 2024

A new study goes deep into the Gulf of Alaska to examine the sixth-largest underwater landslide and investigate why a similar event hasn’t happened since.

Two people row boats across a blue lagoon, which is flanked by verdant trees.
Posted inNews

The Crocodile Dundee Site Helping Rewrite the History of Australian Bushfires

by Bill Morris 4 April 20244 April 2024

A lake made famous by Hollywood has yielded powerful new evidence that humans have conducted controlled burns on the Red Continent for tens of thousands of years.

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.

Two graphs from the paper.
Posted inEditors' Highlights

Clumped 18O –18O in Ice Reveals Past Ozone and Wildfire

by Sarah Feakins 9 December 202218 May 2023

Reactive gases like ozone are hard to preserve, but clumped isotopes and models provide clues to past ozone and suggest a global increase in wildfire at megafaunal extinction.

Gyldenlove Glacier discharges into a fjord in southern Greenland.
Posted inNews

“Sticky” Ice Sheets May Have Led to More Intense Glacial Cycles

by Clara Chaisson 5 January 20222 July 2024

New research attributes a shift to longer, stronger glacial cycles to increased friction between ice sheets and bedrock in the Northern Hemisphere 1 million years ago.

A person clipping mangrove leaves
Posted inNews

Inland Mangroves Are Relics of the Past’s Higher Sea Levels

Katherine Kornei, Science Writer by Katherine Kornei 10 November 202124 January 2024

Mangroves found in southern Mexico’s rain forest, 170 kilometers from the nearest ocean, date to a time when sea levels were several meters higher.

Tabular iceberg on the Sabrina Coast, East Antarctica
Posted inEditors' Vox

Antarctica in a Changing Climate

by T. L. Noble, E. J. Rohling and F. S. McCormack 12 November 202018 May 2023

The impacts of the Antarctic Ice Sheet response to climate change will have global consequences for millions living near the coast. It’s just a matter of when.

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Research Spotlights

Proposed Experiment Could Clarify Origin of Martian Methane

12 May 202512 May 2025
Editors' Highlights

First Benchmarking System of Global Hydrological Models

7 May 20257 May 2025
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Decoding Crop Evapotranspiration

6 May 20256 May 2025
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