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aerosols & particles

A large, anvil-shaped cloud
Posted inNews

Some Summer Storms Spit Sooty Particles into the Stratosphere

by Grace van Deelen 26 November 202526 November 2025

Earth’s typically pristine stratosphere is filling with particles from wildfires and additional moisture due to strong convective storms.

Posted inResearch Spotlights

全球气候模型需要全面纳入氮循环

by Nathaniel Scharping 18 November 202518 November 2025

氮在气候变化、人类健康和农业等领域发挥着重要作用。一位研究人员认为,气候模型若能更全面地纳入氮的影响,将会受益匪浅。

A lake, seen from above, is swirling with green algal blooms. It is flanked on either side by brown desert land.
Posted inResearch Spotlights

Global Climate Models Need the Nitrogen Cycle—All of It

by Nathaniel Scharping 30 October 202518 November 2025

Nitrogen plays important roles in areas including climate change, human health, and agriculture. A researcher argues that climate models would benefit from more fully incorporating its influence.

Tres hombres con chaquetas amarillas y cascos están de pie junto a un árbol talado o caído. El aire a su alrededor es polvoriento, y uno de ellos levanta un terrón.
Posted inFeatures

Donde hay fuego, hay humo

by Emily Dieckman 16 September 20253 October 2025

Utilizando los instrumentos de monitoreo existentes y nuevos, investigadores trabajan para comprender mejor la calidad del aire durante y después de los incendios forestales de Los Ángeles.

A layer of clouds seen from overhead from an airplane
Posted inNews

Dust Is the Sky’s Ice Maker

by Saugat Bolakhe 5 September 20255 September 2025

New analysis links desert dust to cloud freezing, with big implications for weather and climate models.

Tres hombres con chaquetas amarillas y cascos están de pie junto a un árbol talado o caído. El aire a su alrededor es polvoriento, y uno de ellos levanta un terrón.
Posted inFeatures

Where There’s Fire, There’s Smoke

by Emily Dieckman 26 August 202516 September 2025

Using both existing and newly launched monitoring instruments, researchers work to better understand air quality during and after the Los Angeles wildfires.

A schematic of the Pi Cloud Chamber.
Posted inEditors' Highlights

From Aerosols to Clouds: Testing Models with a Convection Cloud Chamber

by Jiwen Fan 25 August 202520 August 2025

Researchers benchmark seven cloud models against cloud chamber measurements to reveal how well models capture aerosol-cloud-turbulence interactions and where models still diverge.

A tractor pulling a plow over a dirt field and generating dust is seen from above.
Posted inNews

Fallowed Fields Are Fueling California’s Dust Problem

by Andrew Chapman 13 June 202512 June 2025

New research shows that unplanted agricultural lands are behind most of the state’s anthropogenic dust events.

A penguin projectile-pooping on ice near water
Posted inNews

Pungent Penguin Poop Produces Polar Cloud Particles

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 22 May 202522 May 2025

The discovery highlights how penguins and other polar seabirds help shape their environments, even as they are under threat from climate change.

The Taj Mahal is cloaked in a haze of pollution, making the edges of buildings and vegetation blurry.
Posted inResearch Spotlights

Heat and Pollution Events Are Deadly, Especially in the Global South

Sarah Derouin, Science Writer by Sarah Derouin 14 May 202514 May 2025

Researchers found that the combination of heat waves and high PM2.5 pollution led to nearly 700,000 premature deaths in the past 30 years—most of which occurred in the Global South.

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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

Tiny Turbulent Whirls Keep the Arctic Ocean Flowing

8 December 20258 December 2025
Editors' Highlights

Episodic Tales of Salt  

10 December 20259 December 2025
Editors' Vox

Hydrothermal Circulation and Its Impact on the Earth System

3 December 20253 December 2025
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