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aerosols & particles

In a photo taken from space, a brown volcanic ash plume from the Hunga Tonga–Hunga Ha‘apai undersea volcano spreads out over the ocean.
Posted inResearch Spotlights

Atmospheric Effects of Hunga Tonga Eruption Lingered for Years

by Rebecca Owen 22 August 202430 September 2024

A new study builds on previous research of the underwater volcano’s effects on the climate.

Satellite image of blue and green phytoplankton blooms in the Southern Ocea
Posted inResearch Spotlights

Climate Model Simulates Unusually High Heat over the Southern Ocean

Sarah Stanley, Science Writer by Sarah Stanley 21 August 202421 August 2024

U.K. researchers compare HadGEM3-GC3.1 simulations of near-surface air temperatures with those from other state-of-the-art models.

Clouds against a blue sky
Posted inNews

A Folding Troposphere May Help Drive Cloud Formation

by Katherine Bourzac 15 August 202415 August 2024

Scientists have observed atmospheric particles forming where the stratosphere folds into the troposphere, a finding that may deepen understanding of precipitation and climate.

Clouds off California’s coast, captured by the Moderate Resolution Imaging Spectroradiometer (MODIS)
Posted inNews

Cloud Brightening Could Have Unintended Effects in a Warming World

Rishika Pardikar, Science Writer by Rishika Pardikar 31 July 202431 July 2024

New research shows that though marine cloud brightening holds potential to temporarily reduce heat stress regionally, the technique has unpredictable and far-reaching outcomes.

Two graphs from the study.
Posted inEditors' Highlights

Buffering by Ammonia Sustains Sulfate Aerosol Production

by Donald Wuebbles 25 July 202424 July 2024

A new method for evaluating the role of multiphase buffering and acidification reactions on aerosol pH finds that the buffering effect sustains sulfate production from high pH-favored multiphase reactions.

A photo of the Caucasus mountains.
Posted inEditors' Highlights

Biogenic Sources Still Dominate Organic Carbon Aerosol in Europe

by Abdelwahid Mellouki 20 June 202420 June 2024

Scientists use radiocarbon measurements from Alpine ice to quantify present and past anthropogenic versus biogenic sources of organic carbon aerosols in the European atmosphere.

Emissions rise from smokestacks in the distance, beyond trees silhouetted by low sunlight.
Posted inScience Updates

An Air Quality Model That Is Evolving with the Times

by Min Huang, Gregory Carmichael and Kevin Bowman 28 May 202428 May 2024

The pioneering Sulfur Transport and Deposition Model, initially designed to simulate atmospheric sulfur, continues to find new applications and value in environmental science and policymaking.

A view of Hollywood, Calif., from above on a smoggy, rainy day.
Posted inNews

Air Pollution Has Masked Climate Change’s Influence on U.S. Rainfall

by Katherine Bourzac 2 April 20242 April 2024

A study suggests that high levels of aerosol pollution have offset higher precipitation levels caused by a warming climate.

A man bends over to plant a sapling. There is a wheelbarrow next to him and a road and green field behind him.
Posted inNews

Planting Trees May Not Be as Good for the Climate as Previously Believed

by Moriah McDonald 21 March 202421 March 2024

The climate benefits of trees storing carbon dioxide is partially offset by dark forests’ absorption of more heat from the Sun, and compounds they release that slow the destruction of methane in the atmosphere.

Figure from the paper.
Posted inEditors' Highlights

Machine Learning Accelerates the Simulation of Dynamical Fields

by Jiwen Fan 20 March 202418 March 2024

Fourier neural operator solvers accurately emulate particle-resolved direct numerical simulations and significantly reduce the computational time by two orders of magnitude.

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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

As Simple as Possible: The Importance of Idealized Climate Models

28 August 202526 August 2025
Editors' Vox

Waterworks on Tree Stems: The Wonders of Stemflow

21 August 202520 August 2025
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