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Opinion

Close-up view of several short glass bottles filled with water and bearing white labels that read “Reference material, Deep Mediterranean seawater.”
Posted inOpinions

Why Metrology Matters for Ocean Alkalinity Enhancement

by Gaëlle Capitaine, Paola Fisicaro and Thibaut Wagener 12 November 202612 November 2026

Accelerating interest in ocean-based carbon dioxide removal often focuses on how much CO2 the ocean could absorb from the atmosphere, but how confidently can we measure this removal?

View across a shallow wetland area dotted by birds and small islands covered in low vegetation. A large lake lies beyond the shallow wetland, and tall mountains rise in the distance.
Posted inOpinions

Breaking Data Scarcity Loops in Mountainous Regions

by Vasco Mantas, Karyn Tabor, Claudia Caro, Marcelo Uriburu Quirno and Cassidy Ochoa 22 October 202622 October 2026

Living labs foster codesigned landscape and hydrological monitoring efforts and tools, thereby improving the reliability and adoption of satellite products and models in decisionmaking.

Layers of ice in sand on Mars
Posted inOpinions

What We Could Lose by Trying to Make Mars Habitable

by Ari Koeppel, Lonneke Roelofs, Santiago Vrech, Alicia M. Rutledge and Martin Turbet 14 October 202627 October 2026

The rock, ice, and atmosphere of Mars hold a largely unread archive. Terraforming could erase it before the biggest scientific questions are answered.

Haze hovers in the distance over an undeveloped, arid-looking landscape as seen from an aircraft. Above, long, thin white clouds stretch across a bright blue sky.
Posted inOpinions

Life in the Skies Links Ecosystems Near and Far. It Deserves More Attention.

by Allison C. Aiken, Sonia Kreidenweis and Kathleen C. Weathers 8 October 20262 November 2026

Our understanding of Earth’s biology and its responses to environmental change is limited by an incomplete picture of the planet’s dynamic aerobiome.

Two people wearing hats and blue lab gloves sit on a rocky slope, part of which is stained orange by spring water, above a green-tinted pool of water.
Posted inOpinions

Underground Hydrogen: Two High-Reward Bets, One Indispensable Science

by Laurent Truche, Frédéric-Victor Donzé and Chris Ballentine 15 September 202615 September 2026

Regardless of the commercial implications, there is a solid scientific case for research into underground hydrogen storage and natural hydrogen production.

A group of people stand on a rock overlooking a river.
Posted inOpinions

Prioritizing Quality Before Synthesis in Paleoenvironmental Hazard Science

by Samuel E. Muñoz 28 August 202627 August 2026

The field needs methodological and workforce development. A proposed new center should invest there first.

A small stream snakes through a vast field of low, green vegetation in front of arid-looking mountain peaks.
Posted inOpinions

A Hybrid Approach for Revealing Headwater Hydrology

by John Hammond, Jay Christensen, Kristin Jaeger, Roy Sando and Jacob A. Zwart 5 August 20265 August 2026

Coordinated work to compile existing data and apply models pairing physical understanding with machine learning could substantially improve streamflow predictions for little-known headwater basins.

Panoramic view overlooking a stream meandering through green farm fields toward hills and mountains in the distance
Posted inOpinions

Archetypes Could Accelerate Agricultural Adaptation to Less Snowpack

by Beatrice L. Gordon, Gabrielle F. S. Boisrame, Christine M. Albano, Rosemary W. H. Carroll and Adrian A. Harpold 9 June 20269 June 2026

Measurable characteristics can be used to develop archetypes of complex agricultural systems, helping stakeholders to assess where different adaptation strategies are more likely to succeed.

Concrete stream weir in a forest channel measuring water flow at Hubbard Brook Experimental Forest, N.H.
Posted inOpinions

The Governance Gap Threatening Long-Term Ecological Archives

by Anthony Veltri 27 May 202627 May 2026

To save multigenerational science from administrative indifference, we must mandate stewardship continuity before closing physical facilities.

View looking down a beach with small waves and sea foam washing ashore while a single bird flies above.
Posted inOpinions

The Global Impact of Losing U.S. Sea Level Science

by Andra J. Garner, Robert E. Kopp, Gregory G. Garner, Aimée B. A. Slangen and Benjamin P. Horton 15 May 202615 May 2026

Cuts to climate science risk halting or even erasing decades of progress in global change research—just as risks from rising seas demand better data, informed decisionmaking, and faster action.

Posts pagination

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

Features from AGU Publications

Research Spotlights

The Experiments Improving Our Understanding of Volcanic Tsunamis

12 November 202612 November 2026
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Disappearing Moon Craters

9 November 2026
Editors' Vox

Announcing the New AGU Publications Editors-in-Chief Starting in 2027

6 November 20266 November 2026
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