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Katherine Bourzac

Downtown Denver and the surrounding area, with the Sun low in the sky
Posted inNews

Denver’s Stinkiest Air Is Concentrated in Less Privileged Neighborhoods

by Katherine Bourzac 13 May 202513 May 2025

The bad odors of air pollution are difficult to regulate, but can pose significant health risks, reduce a home’s property value, and affect a homeowner’s peace of mind.

Satellite image of brown dust over a blue ocean
Posted inNews

Saharan Dust Carries Iron That Feeds Life in the Distant Ocean

by Katherine Bourzac 30 October 202430 October 2024

A new study of seafloor sediments suggests reactions in the atmosphere convert dust-borne iron into forms more readily taken up by phytoplankton.

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.

A dried-out cornfield
Posted inNews

Climate Change Is Likely to Slash Global Income

by Katherine Bourzac 17 May 202417 May 2024

A new study estimates that climate change could cost $38 trillion per year, but emissions mitigation and adaptation strategies could limit future damages.

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.

Monitoring equipment sits atop a well.
Posted inNews

Groundwater Levels Are Dropping Around the World

by Katherine Bourzac 14 February 202414 February 2024

Well data from around the world show declines driven by water use and climate change.

A view of a Washington, D.C., skyline from the Potomac River at night. The Lincoln Memorial (at left) and the Washington Monument (at right) are lit against a purple sky. Over the water of the Potomac appear the text “#AGU24 coverage from Eos.”

Features from AGU Publications

Research Spotlights

Simplicity May Be the Key to Understanding Soil Moisture

23 May 202523 May 2025
Editors' Highlights

Creep Cavitation May Lead to Earthquake Nucleation

22 May 202521 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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