• About
  • Sections
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • Postcards From the Field
    • ENGAGE
    • Editors’ Highlights
    • Editors’ Vox
    • Eos en Español
    • Eos 简体中文版
    • Print Archive: 2015–2025
  • Science Policy Tracker
  • Blogs
    • Research & Developments
    • The Landslide Blog
  • Newsletter
  • Submit to Eos
  • AGU.org
  • Career Center
  • Join AGU
  • Give to AGU
  • About
  • Sections
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • Postcards From the Field
    • ENGAGE
    • Editors’ Highlights
    • Editors’ Vox
    • Eos en Español
    • Eos 简体中文版
    • Print Archive: 2015–2025
  • Science Policy Tracker
  • Blogs
    • Research & Developments
    • The Landslide Blog
  • Newsletter
  • Submit to Eos
Skip to content
  • AGU.org
  • Career Center
  • Join AGU
  • Give to AGU
Eos

Eos

Science News by AGU

Support Eos
Sign Up for Newsletter
  • About
  • Sections
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • Postcards From the Field
    • ENGAGE
    • Editors’ Highlights
    • Editors’ Vox
    • Eos en Español
    • Eos 简体中文版
    • Print Archive: 2015–2025
  • Science Policy Tracker
  • Blogs
    • Research & Developments
    • The Landslide Blog
  • Newsletter
  • Submit to Eos

Mark DeGraff

Imagen microscópica de grumos de tierra en una matriz de fibras de poliéster.
Posted inNews

Los microplásticos tienen efectos muy variados en el suelo

by Mark DeGraff 14 January 202614 January 2026

Un nuevo estudio revela que una concentración de microplásticos de tan solo el 0,4 % altera el drenaje del suelo, lo que podría afectar al crecimiento de los cultivos y otras plantas.

Microscopic image of clumps of soil in a matrix of polyester fibers
Posted inNews

Microplastics Have Widely Varying Effects on Soil

by Mark DeGraff 29 October 202514 January 2026

A new study finds that a microplastic concentration of just 0.4% alters the drainage of soil, which could affect the growth of crops and other plants.

Satellite image of green swirls in blue water next to a snow-covered coast
Posted inNews

Iron Emissions Are Shifting a North Pacific Plankton Bloom

by Mark DeGraff 6 August 20256 August 2025

Some of the iron emitted by industrial activity in East Asia is carried by winds into the North Pacific, where it nourishes iron-hungry phytoplankton.

A raging stream in Rocky Mountain National Park in north central Colorado
Posted inNews

Years-Old Groundwater Dominates Spring Mountain Streams

by Mark DeGraff 3 July 20253 July 2025

Alpine rain and snow take much longer to percolate into western U.S. streams than previously thought, adding complexity to long-standing hydrologic models.

View of a wide creek surrounded by trees
Posted inNews

Mobile Bay Has More Branching Brooks Than Shown on Federal Maps

by Mark DeGraff 16 December 202416 December 2024

A more accurate charting of the full extent of stream networks will help land managers better protect U.S. creeks and rivers.

A view of a bridge, with the New Orleans skyline visible in the distance between the bridge and the water. A purple tint, a teal curved line representing a river, and the text “#AGU25 coverage from Eos” overlie the photo.

Features from AGU Publications

Research Spotlights

Which Countries Are Paying the Highest Price for Particulate Air Pollution?

28 January 202628 January 2026
Editors' Highlights

Cows, Coal, and Chemistry: The Role of Photochemistry in Methane Budget

27 January 202623 January 2026
Editors' Vox

Bridging the Gap: Transforming Reliable Climate Data into Climate Policy

16 January 202616 January 2026
Eos logo at left; AGU logo at right

About Eos
ENGAGE
Awards
Contact

Advertise
Submit
Career Center
Sitemap

© 2026 American Geophysical Union. All rights reserved Powered by Newspack