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bacteria & microbes

Photo of a muddy river.
Posted inEditors' Highlights

Physics and Biology as Likely Stream Bedfellows

Eric Davidson, president-elect of AGU by Eric Davidson 18 November 202415 November 2024

Streambeds are key sites for removal of nutrients and other contaminants through microbial processes, but are limited by diffusion, which can now be modeled from streambed physical properties.

Scientists stand atop Arctic ice.
Posted inFeatures

The Arctic’s Uncertain Future

by Grace van Deelen 15 November 202415 November 2024

Over the next century, the Arctic will change and look much different than it does today. Just how different is still unknown.

A cliff face with pink and red layers
Posted inNews

Bacteria Battled for Iron in Earth’s Early Oceans

by Caroline Hasler 15 November 202416 January 2025

Billions of years ago, iron-oxidizing microbes may have competed for dissolved iron in the ocean, with some strains producing toxic gases that smothered their rivals.

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.

Photo of a desert with white salt on the surface.
Posted inEditors' Vox

Soil Salinization: A Rising Threat to Ecosystems and Global Food Security

by Nima Shokri, Amirhossein Hassani and Muhammad Sahimi 21 October 202418 October 2024

As soil salinization intensifies, it poses serious threats to ecosystems, soil health, global food security and socio-economic stability.

A satellite image shows miles-wide blooms of green phytoplankton in the ocean.
Posted inNews

Microbe Preferences Drive Ocean Carbon Pump

by Grace van Deelen 15 October 202415 October 2024

New research offers insight into how certain bacteria degrade organic matter in Earth’s oceans.

A thin stream of water on a dirt surface curves off to the left out of frame. Two large mountains—one a snowy peak, one not—are in the distance.
Posted inResearch Spotlights

Each Glacier Has a Unique Organic Matter Composition

by Saima May Sidik 15 October 202415 October 2024

Like snowflakes, no two glaciers are alike: Carbon-containing compounds released from glaciers vary from place to place, meaning climate and ecosystem effects of melting could vary as well.

A submersible vessel explores a polymetallic nodule field on the seafloor in the Pacific Ocean.
Posted inResearch Spotlights

The Unexpected Role of Magnetic Microbes in Deep-Sea Mining

Aaron Sidder, freelance science writer by Aaron Sidder 26 September 202424 April 2025

A new study highlights the co-occurrence of magnetic bacteria and polymetallic nodules and may offer insights into how the mineral-rich nodules form on the ocean floor.

Bright sunlight filters through tall trees growing from a mossy forest floor.
Posted inNews

Microbes in Tree Bark Absorb Millions of Tons of Methane Each Year

by Skyler Ware 23 August 202423 August 2024

New findings suggest that reforestation efforts could have a bigger—and more positive—climate impact than previously estimated.

A scientist collects soil samples in Ukraine.
Posted inNews

Ukrainian Scientists Race to Document Soil Fungi

by Andrew J. Wight 15 August 202415 August 2024

Genetic sequencing of samples collected from across the country contribute to a global database and may help researchers assess the damage caused by war.

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Features from AGU Publications

Research Spotlights

Early Apes Evolved in Tropical Forests Disturbed by Fires and Volcanoes

12 June 202511 June 2025
Editors' Highlights

Coverage Factors Affect Urban CO2 Monitoring from Space

12 June 202512 June 2025
Editors' Vox

Inside Volcanic Clouds: Where Tephra Goes and Why It Matters

16 June 202512 June 2025
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