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California

Diatom chains within glass shells shaped like toothpicks
Posted inNews

Wastewater Can Take Harmful Algal Blooms from Bad to Worse

by Lisa S. Gardiner 8 September 20268 September 2026

By modeling toxic diatoms and coastal processes, scientists have discovered the degree to which nutrients from Southern California’s densely populated coast affect these blooms.

An aerial view of the city of Sacramento. High-rise buildings, a river, agricultural fields, and mountains can all be seen.
Posted inNews

California’s Drought Irreversibly Damaged Sacramento Valley Aquifers

by Grace van Deelen 21 August 202620 August 2026

Satellite data have revealed an abrupt drop in aquifers’ ability to recharge after the 2020–2022 drought. More real-time monitoring could spot the issue before it arises again.

Photo of a group of people.
Posted inEditors' Highlights

Redesigning Farmland Through Community Collaboration in California

by Claire Beveridge 22 July 202621 July 2026

A community-led project in California shows how collaboration can reshape farmland to improve water resources, restore native plants, and create recreational space.

A sand bar on a beach is surrounded by water on both sides. A coastline with infrastructure is seen in the distance.
Posted inResearch Spotlights

Extensive Sand Dune Loss Threatens California Coast

by Saima May Sidik 26 June 202625 June 2026

Aerial photos combined with lidar data show the extent of the problem.

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.

Photo of a rocky landscape with labels for geologic features.
Posted inEditors' Highlights

Recycled Rocks Reveal Subduction Zone Dynamics Off Baja California

by Alexis Ault 21 May 202621 May 2026

High-pressure rocks on Cedros Island were exhumed, eroded, and redeposited into the subduction trench multiple times, reshaping interpretations of ancient plate boundary processes.

The flooded Yuba River rages underneath the Highway 49 Bridge in Nevada City, Calif.
Posted inResearch Spotlights

Keeping Humans in the Loop Improves Flood Forecasting

by Rebecca Owen 19 May 202619 May 2026

Artificial intelligence and machine learning can improve flood predictions—but human expertise still matters for accurate warnings, new research says.

The West Kern Fire and thick smoke move through trees near the boundary of California’s Sequoia National Park.
Posted inResearch Spotlights

How Much Will Western Wildfires Worsen Under Warming?

by Rebecca Owen 15 May 202626 May 2026

A new study reevaluates the use of vapor pressure deficit, or VPD, in climate models to predict increases in area burned by wildfire across the U.S. West.

A burnt, smoky hillside with burnt trees lies along a road.
Posted inNews

Low Snow in Eurasia Linked to Wildfires in California

by Andrew Chapman 13 May 202615 May 2026

Scientists found that low autumn snow levels in western Eurasia are associated with dry, warm winters in California, increasing the Golden State’s wildfire risk.

Large plumes of smoke rise from a hillside. Two vehicles on a roadside are dwarfed by the smoke cloud.
Posted inResearch Spotlights

Want to Predict Wildfire Severity? Look to the State of Vegetation

by Rebecca Owen 4 May 20264 May 2026

A new study connects satellite data on vegetation condition, topography, and weather conditions to examine the predicted versus actual burn severity of the 2025 Los Angeles wildfires.

Posts pagination

1 2 3 … 19 Older posts
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

Tiny Cyanobacteria May Be the Secret Heroes of Ocean Carbon Sequestration

10 September 202610 September 2026
Editors' Highlights

Waves Play a Key Role for Lateral Stirring and Mixing of Ocean Tracers

11 September 202611 September 2026
Editors' Vox

How Can We Make Better Decisions About What Lies Underground?

10 September 202610 September 2026
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