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aerosols & particles

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.

A gif of images from Mars that show distant mountains gradually being blocked from view by blowing red dust
Posted inResearch Spotlights

Martian Dust Will Be a Health Hazard for Astronauts

by Rebecca Dzombak 14 March 202514 March 2025

Prolonged exposure to the Red Planet’s regolith, which contains carcinogens and toxic metals, could pose respiratory threats and increase chronic disease risk.

Photo of the empty streets of Times Square.
Posted inEditors' Vox

Particulate Pollution and its Climate Impacts During the COVID-19 Pandemic

by Yuan Wang 24 February 202524 February 2025

The impacts of COVID-19 on short-lived pollutants highlight the predominant influence of the transportation sector and the resulting changes in regional climates and ecosystems.

Photo of clouds with a sunset in the background.
Posted inEditors' Highlights

Characterizing the Space Between Clouds and Clear Sky

by Susan Trumbore 7 February 20257 February 2025

The area near clouds is often classified as ‘clear sky’, but a new study demonstrates the potential biases of misclassifying these transition zones and their significance for Earth’s energy budget.

Aerial view of a large, flat body of water among some mountain ranges
Posted inNews

The Deleterious Dust of the Salton Sea

Katherine Kornei, Science Writer by Katherine Kornei 30 January 202530 January 2025

Coarse particulate matter deriving from California’s largest lake is linked to an increased risk of respiratory-related hospitalizations.

An aerial view of Seoul, South Korea, bathed in orange light at sunrise
Posted inNews

“Exceptional” Global Warming Spike Continued in 2024

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 10 January 202510 January 2025

More than 3 billion people experienced their hottest year ever in 2024 because of anthropogenic climate change. The world is speeding toward its 1.5°C warming target.

A smokestack emits smoke, which blocks out the Sun and is lit up against a blue and orange sky.
Posted inResearch Spotlights

Aerosols Could Be Weakening Summertime Circulation

by Rebecca Owen 18 December 202418 December 2024

Anthropogenic aerosol emissions may be a culprit behind weakening jet streams and weather systems in the Northern Hemisphere.

View of a dense city with buildings on hills in the background.
Posted inNews

The Breath of Colonialism Continues to Taint the Air in Uganda

by Rita Aksenfeld 12 December 202412 December 2024

Potentially harmful air quality in Kampala, Uganda, follows the borders of segregated settlements from Africa’s colonial era.

An air monitor seen against a cloudy sky.
Posted inNews

EPA Air Monitoring Network Misses 2.8 Million Americans in Pollution Hot Spots

by Grace van Deelen 1 November 20241 November 2024

Current EPA air monitoring may not capture the extent of particulate air pollution.

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Seasonal Iron Cycle and Production in the Subantarctic Southern Ocean

29 May 202529 May 2025
Editors' Vox

Keeping Soil Healthy: Why It Matters and How Science Can Help

29 May 202529 May 2025
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