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AMOC

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.

Diagram from the study.
Posted inEditors' Highlights

Taking Our Paleoceanographic Tools to the Next Level

by David Thornalley 2 April 202527 March 2025

A new modeling study shows that to accurately interpret data derived from an iconic proxy of past Atlantic overturning strength, we must consider the complex factors governing the proxy systematics.

Una ilustración mostrando la Corriente de Florida entre Florida y las Bahamas
Posted inNews

La corriente de Florida podría estar desacelerándose, pero no por mucho

by Grace van Deelen 21 November 202419 December 2024

Una corrección necesaria a un conjunto de datos ampliamente utilizados redujo las estimaciones de los científicos de cómo se ha debilitado la circulación oceánica.

A hand holds a disc of ice between thumb and forefinger while the person’s other hand points at it with the little finger. On a surface below, a ruler can be seen.
Posted inNews

Centennial-Scale Jumps in CO2 Driven by Earth’s Tilt

Katherine Kornei, Science Writer by Katherine Kornei 8 November 20248 November 2024

Antarctic ice records uncovered seven previously unknown jumps in atmospheric carbon dioxide. These events may have been driven by changes in Earth’s tilt.

An illustration showing the Florida Current, a flow of ocean water between Florida and the Bahamas.
Posted inNews

The Florida Current May Be Slowing Down, but Not by Much

by Grace van Deelen 7 October 202421 November 2024

A needed correction to a widely used data set reduced scientists’ estimates of how ocean circulation has weakened.

An aerial photograph of a glacier that terminates at the sea.
Posted inNews

How Did We Miss 20% of Greenland’s Ice Loss?

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 8 February 20242 July 2024

The ice loss was hidden in places existing monitoring methods can’t reach, such as hard-to-map fjords. Machine learning helped scientist revise mass loss estimates and uncover patterns in glacial retreat.

Graph from the paper.
Posted inEditors' Highlights

Arctic Salinity Pushes the AMOC Swing

by Kristopher B. Karnauskas 3 August 20222 July 2024

A model of the Atlantic Meridional Overturning Circulation (AMOC), pioneered by Henry Stommel over 60 years ago, can exhibit realistic cyclic behavior if the role of Arctic salinity is included.

Image of the North Atlantic Ocean
Posted inResearch Spotlights

Nonlinear Effects of Wind on Atlantic Ocean Circulation

by Jack Lee 11 January 20222 July 2024

Simulations reveal the influence of reduced and enhanced wind stress on the Atlantic Meridional Overturning Circulation.

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 picture of rainfall in a tropical rainforest.
Posted inEditors' Vox

Understanding Abrupt Climate Change in the Late Quaternary

by Raymond S. Bradley and Henry F. Diaz 18 November 20212 July 2024

During the late Quaternary period, a series of abrupt climate changes in the tropics and sub-tropics driven by changes in ocean circulation were both dramatic and disruptive.

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Resilient Solutions Involve Input and Data from the Community

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