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extreme events

People walk down the middle of snow-covered streets among trees and several-story buildings while snow continues falling.
Posted inOpinions

Environmental Hazard Impact Metrics That Matter

by Mari R. Tye, Laura Landrum, J. Maldonado, Diamond Tachera and James M. Done 11 September 202511 September 2025

Humans acutely experience climate change when they encounter extreme environmental conditions, but scientific definitions of “extreme” often don’t reflect communities’ complex lived experiences.

The Sun sets in an orange sky over the city of Madrid.
Posted inNews

Europe Faces Increased Heat Mortality in Coming Decades

Javier Barbuzano, Science Writer by Javier Barbuzano 25 February 202525 February 2025

Extreme temperature caused by unchecked climate change could claim 2.3 million lives in Europe by 2100, a new study warns.

A person sits on a platform on a marsh. The platform is connected to a series of wires connected to a white tower.
Posted inResearch Spotlights

Dry Heat, Wet Heat, and Wetland Methane Emissions

Aaron Sidder, freelance science writer by Aaron Sidder 20 November 202420 November 2024

Compound weather events—such as extreme cold or heat combined with severe dryness or precipitation—have a greater effect on wetland methane emissions than discrete weather extremes do.

A huge prominence shoots out into space from the surface of the Sun. The Sun’s surface and the erupted material appear to be various fiery shades of orange, red, and yellow, and the Sun’s curved horizon appears in the distance against the blackness of space, highlighting just how big the eruption is.
Posted inResearch Spotlights

Blasts from the Past: New Insights from Old Space Storms

Sarah Stanley, Science Writer by Sarah Stanley 24 October 202424 October 2024

Reassessment and comparison of past space weather events highlight the potential for Earth to experience destructive geomagnetic disturbances.

A black-and-white artist’s depiction of Earth’s Van Allen radiation belts—two half-oval shapes extending out to the left and right of Earth (to show a cross section of the belts).
Posted inResearch Spotlights

Audible Storm Waves Could Turbocharge Earth’s Radiation Belts

Sarah Stanley, Science Writer by Sarah Stanley 16 October 202416 October 2024

Electromagnetic chorus waves could generate more extreme radiation levels than previously thought, posing severe hazards for Earth-orbiting spacecraft.

Satellite image of tan whisps of clouds over green land. There is brown land to the right and blue ocean to the left.
Posted inNews

Extreme Wildfires Make Their Own Weather

by Elise Cutts 8 March 202313 March 2023

Extreme fires in the western United States and Southeast Asia influenced the local weather in ways that make fires and smoke pollution worse.

Posted inEditors' Highlights

Tracking from Space how Extreme Drought Impacts Carbon Emissions

by Susan Trumbore 12 December 202112 December 2021

Carbon dioxide emissions from wildfires combined with reduced carbon uptake by intact ecosystems during the 2019-202
0 fire season to approximately double Australia’s annual carbon emissions.

Map of the Babai river basin in Nepal showing location of water level and streamflow measuring stations.
Posted inEditors' Highlights

Satellite Estimates for Hydroclimatic Extremes

by Jonathan H. Jiang 20 September 202128 September 2021

A new study corrects poor-performing satellite-based rainfall estimates with gauge data and also fills gauge data gaps using well-performing satellite-based rainfall estimates.

Krasnoyarsk sunset over the mountains
Posted inNews

Siberian Heat Wave Nearly Impossible Without Human Influence

by Michael Allen 17 June 202128 April 2022

A new study finds that the exceptional temperatures seen in Siberia in the first half of 2020 would have been extremely unlikely without anthropogenic climate change.

A close-up photograph of the eye of Hurricane Dorian.
Posted inNews

Your Summer Outlook: Cloudy with an Above-Normal Chance of Hurricanes

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 20 May 202128 April 2022

Get ready for another above-average hurricane season, but it likely won’t be as busy as last year.

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Features from AGU Publications

Research Spotlights

Droughts Sync Up as the Climate Changes

18 September 202518 September 2025
Editors' Highlights

Unexpected Carbonate Phase Revealed by Advanced Simulations

25 September 2025
Editors' Vox

How Glacial Forebulges Shape the Seas and Shake the Earth

23 September 202519 September 2025
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