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water pollution

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.

The front of a cruise ship is seen at night.
Posted inResearch & Developments

EPA Moves to Redefine “Discharge of a Pollutant”

by Emily Gardner 3 September 20263 September 2026

The EPA is proposing a change to the definition of “discharge of a pollutant” that would exempt moving boats and ships from pollution regulations.

Six circles, labeled A through F, each with seven dots on them. In some of the circles, the dots are surrounded by circles of their own, showing how the dots (antibiotics) are affecting the bacteria in the dish.
Posted inFeatures

Antimicrobial Resistance Is Killing Millions. Climate Change Is Making It Worse.

by Emily Gardner 1 September 20261 September 2026

A growing body of evidence indicates that factors such as rising temperatures and extreme weather are contributing to what some researchers have called “the slow pandemic.”

A sign next to a lake in the forest reads “Boundary Waters Canoe Area Wilderness, Superior National Forest.”
Posted inNews

One Billion Years Ago, Northern Minnesota Nearly Split Apart. Now, Two Companies Want to Mine the Aftermath.

by Grace van Deelen 24 July 202623 July 2026

A continental rift created valuable mineral deposits beneath a remote wilderness beloved by recreationists.

Many small, colorful pieces of plastic float in teal-blue water.
Posted inAGU News

Millions of Invaders Are Attacking the Ocean, and the Ocean Is Losing

by Caryl-Sue Micalizio 1 July 20261 July 2026

Every year, an additional 11 million tons of microplastics permeate the water column and marine ecosystems within it. Geoscience is contributing to strategies that aim to identify microplastic movements—and stop them.

A tire is half submerged in a pool of water on a coastline. Tree trunks or wood pieces are also poking out of the sand in the background.
Posted inNews

What Tires Leave Behind Can Become Toxic Fish Food

by Rebecca Owen 17 June 20261 July 2026

Tire particles might seem tasty, if you’re a fish—but a new study shows how this pervasive microplastic can affect growth and behavior in marine species.

Satellite image of the Mergui Archipelago off Myanmar, showing swirls of organic matter and sediment flowing into the ocean near coastal coral reefs.
Posted inNews

Have We Been Focusing on the Wrong Ocean Pollutants? This Study Maps What We’ve Been Missing

by Mariana Mastache-Maldonado 13 May 202613 May 2026

A global analysis of more than 2,300 seawater samples found that largely unmonitored industrial compounds are widespread across oceans and may be changing crucial biological and carbon cycling processes.

Diagrams from the article.
Posted inEditors' Highlights

Human Effects on Background Atmosphere have Affected Mercury Chemistry

by Donald Wuebbles 3 March 20263 March 2026

Atmospheric mercury chemistry has evolved over time due to changes in atmospheric composition, especially for changing concentrations of bromine radicals, hydroxyl radicals, and ozone.

A lake, seen from a rock on the shore, is mostly covered in ice but beginning to melt. The melting water is purple. On the other side of the lake, a rocky cliffside with evergreen trees is visible beneath a blue sky.
Posted inResearch Spotlights

How the Spring Thaw Influences Arsenic Levels in Lakes

by Saima May Sidik 6 February 20266 February 2026

Four lakes near Yellowknife, Canada, show that there’s no one-size-fits-all answer.

A bird stands next to plastic bottles and bags on a rocky beach.
Posted inFeatures

Pollution Is Rampant. We Might As Well Make Use of It.

by Saima May Sidik 30 January 20261 May 2026

Human-made substances hold dangers for the environment, but they also give scientists a view into recent history.

Posts pagination

1 2 3 … 10 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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