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biogeochemistry

A brilliant green mineral juts out from a chunk of blackish rock dotted with other patches of green crystals.
Posted inNews

Olivine May Have Given Life a Jump Start

by Elise Cutts 1 February 20241 February 2024

A mineral common throughout the solar system nudges a reaction that produces sugar molecules from formaldehyde.

A person with a mask on walking through a smog covered parking lot.
Posted inEditors' Vox

OneHealth, Climate Change, and Infectious Microbes

by Antarpreet Jutla, Gabriel Filippelli, Katherine D. McMahon, Susannah G. Tringe, Rita R. Colwell, Helen Nguyen and Michael J. Imperiale 31 January 20249 September 2024

AGU and ASM welcome submissions to a joint special collection focusing on the impacts of climate change and microbes on human well-being.

A river in Iceland seen from above
Posted inResearch Spotlights

Gently Down the Stream: Carbon’s Journey from Land to Sea and Beyond

by Nathaniel Scharping 6 November 20237 November 2023

Movement of carbon from land to ocean and atmosphere plays an important, but understudied, role in the global carbon cycle.

Satellite image of the Mississippi River surrounded by a green landscape
Posted inNews

Rivers Are Warming Up and Losing Oxygen

by Elise Cutts 3 November 20233 November 2023

Researchers used deep learning to fill in the gaps of “patchy” water quality data, revealing decades-long trends toward warmer and less oxygenated rivers that could have worrisome consequences.

A satellite image of Earth’s surface shows gray material—airborne dust—fanning out over a landscape of snowy mountain peaks and vegetated lowlands.
Posted inNews

Protein Powder Makes Ice Crystals Flower

Katherine Kornei, Science Writer by Katherine Kornei 26 September 202326 September 2023

Dust from Alaska is particularly effective at forming ice crystals because it contains biological components, researchers believe. The finding has implications for cloud physics and our planet’s climate.

Marine snow falling through photic zone in Monterey Bay, California.
Posted inScience Updates

Our Evolving Understanding of Biological Carbon Export

by Emily Osborne, Jessica Y. Luo, Ivona Cetinić, Heather Benway and Susanne Menden-Deuer 12 September 202325 January 2024

The array of processes and organisms that make up the biological carbon pump has immense influence on Earth’s carbon cycle and climate. But there’s still much to learn about how the pump works.

Green ocean mixed with blue close to a brown land
Posted inNews

More Than Half the World’s Ocean Surface Is Getting Greener

by Meghie Rodrigues 22 August 202317 June 2025

Advances in data analysis help researchers spot shifting ocean colors, which could be associated with climate change.

Photo of a bell pepper plant experiment
Posted inEditors' Vox

Air Flow Dynamics in Wet Soils: Challenges and Knowledge Gaps

by Ilan Ben-Noah 6 July 20235 July 2023

Modeling air flow in wet porous media relies on quantifying the combined role of fluid and media properties and flow dynamics on the microscale displacement mechanisms and macroscale unstable flow.

Aerial view of the Copper River draining into the Gulf of Alaska.
Posted inOpinions

The Science We Need to Assess Marine Carbon Dioxide Removal

by Jaime B. Palter, Jessica Cross, Matthew C. Long, Patrick A. Rafter and Clare E. Reimers 1 June 202325 January 2024

As companies begin selling credits for marine carbon dioxide removal in largely unregulated marketplaces, scientists must develop standards for assessing the effectiveness of removal methods.

A photo angled from above of a small white bird and a white egg in a nest of twigs.
Posted inNews

Harpy Eagles Concentrate Precious Nutrients in the Amazon

Adityarup Chakravorty, freelance science writer by Adityarup Chakravorty 10 May 202325 May 2023

Amazon soils are usually low in the nutrients that plants covet, but harpy eagles can create local hot spots with their poop and prey.

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