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Dork Sahagian

Microphotograph of diatoms of various shapes and sizes.
Posted inEditors' Highlights

Machine Learning Enhances Image Analysis in Biogeosciences

by Dork Sahagian 6 November 20245 November 2024

Machine learning can enhance our ability to identify communities of microorganisms and how they change in response to climate change over time.

Three JGR: Biogeosciences cover images.
Posted inEditors' Vox

20 Years of Biogeosciences Research: Looking Back to Forge Ahead

by Marguerite A. Xenopoulos, Gil Bohrer, Jing Chen, Patrick Crill, Shuli Niu, Dork Sahagian and Suzanne Tank 20 July 202320 July 2023

A new special collection invites review papers to mark the 20th anniversary of the Journal of Geophysical Research: Biogeosciences with a focus on what we have learned and what is still unknown.

Posted inEditors' Highlights

Cobalt Key to Development of Early Life on Earth

by Dork Sahagian 16 March 201820 June 2024

Cobalt may have played in important role in the early development of life on Earth, and been more available to ancient life than modern due to the higher mafic composition of early continents.

Glacier melting off the coast of Greenland.
Posted inEditors' Vox

Responding to Climate Change Deniers with Simple Facts and Logic

by Dork Sahagian 30 March 201721 February 2023

A sequence of five questions and answers that can be used by scientists to communicate some simple concepts of climate change to broader audiences.

Posted inEditors' Vox

The Proof of Our Science Lies in the Telling

by Dork Sahagian 8 February 20167 March 2023

Communicating our science for the benefit of society

A view of a bridge, with the New Orleans skyline visible in the distance between the bridge and the water. A purple tint, a teal curved line representing a river, and the text “#AGU25 coverage from Eos” overlie the photo.

Features from AGU Publications

Research Spotlights

Wintertime Spike in Oceanic Iron Levels Detected near Hawaii

11 December 202511 December 2025
Editors' Highlights

Frictional Properties of the Nankai Accretionary Prism

11 December 20259 December 2025
Editors' Vox

Hydrothermal Circulation and Its Impact on the Earth System

3 December 20253 December 2025
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