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bacteria & microbes

Bright yellow beach closure sign that says “Keep out. Sewage contaminated water. Exposure may cause illness.” The sign is leaning against a gate outside of Border Field State Park, which is located in Imperial Beach, Calif.
Posted inNews

Spring and Sewage Are in the Air Near San Diego

by Krystal Vasquez 5 April 20235 April 2023

Sea spray can transport sewage-contaminated waters inland, potentially exposing those living kilometers from the beach.

A person stands in a dark cave holding a flashlight.
Posted inNews

Searching for the Sculptor of France’s Caves

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 31 March 202331 March 2023

Spelunking scientists searched for the original source of the French Pyrenees’ magnificent caves.

A group of sheep graze in a green field.
Posted inNews

Veterinary Antibiotics Reduce Soil Carbon Sequestration Capacity

Rishika Pardikar, Science Writer by Rishika Pardikar 21 March 202321 March 2023

Livestock grazing areas sequester less carbon than those under wild herbivores.

Satellite photo of a brown and gray landscape with hills and bumps
Posted inNews

We (Probably) Can’t Tell Whether Mars Has Life

by Matthew R. Francis 10 March 202310 March 2023

State-of-the-art equipment can’t always identify life inhabiting the most Mars-like spot on Earth, leaving scientists wondering how to do better on the Red Planet.

Close-up view of bright green algae fronds
Posted inScience Updates

Making Sense of the Great Barrier Reef’s Mysterious Green Donuts

by Jody Webster, Mardi McNeil, Helen Bostock, Luke Nothdurft and Maria Byrne 9 March 202321 December 2023

Researchers set sail to the Great Barrier Reef to study how ring-shaped algae deposits formed and evolved, what feeds them, and the diversity of creatures that call them home.

A scientific instrument being lowered from a research vessel into the ocean
Posted inNews

Deep-Sea Pressure Crushes Carbon Cycling

by Elise Cutts 11 January 20234 May 2023

The extreme pressure in the deep sea stifles microbes’ appetite for organic carbon. This finding could have important implications for carbon budgets and geoengineering.

Satellite view of parts of the eastern Mediterranean and Middle East showing dust in the atmosphere
Posted inResearch Spotlights

Bacteria Travel Thousands of Kilometers on Airborne Dust

by Derek Smith 22 November 2022

As winds pick up dirt and sand, they also pick up any microbes adhering to those particles, potentially introducing them to new locations.

R/V Mirai makes its way across Arctic sea ice.
Posted inNews

The Bottom of the Arctic Is Blooming

by Fanni Daniella Szakal 14 November 202217 November 2022

Researchers found phytoplankton hidden on the Arctic seafloor, hinting at a cascade of effects on the local ecology and carbon cycle.

Artistic impression of an orange-colored early Earth
Posted inNews

Early Life Learned to Love Oxygen Long Before It Was Cool

by Jennifer Schmidt 16 September 202221 February 2023

Laboratory experiments show that earthquakes may have helped early life evolve in an oxygen-free world.

A red tide washes over a Florida beach.
Posted inFeatures

Harmful Algal Blooms: No Good, Just the Bad and the Ugly

by James E. Silliman 9 September 202214 September 2022

Natural and human factors are leading to larger, more frequent, and longer-lasting algae blooms. Recent research is increasingly revealing the scope of the problem and informing potential responses.

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Features from AGU Publications

Research Spotlights

Machine Learning Simulates 1,000 Years of Climate

27 August 202527 August 2025
Editors' Highlights

Radar Surveys Reveal Permafrost Recovery After Wildfires

4 September 20254 September 2025
Editors' Vox

Experienced Researcher Book Publishing: Sharing Deep Expertise

3 September 202526 August 2025
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