While the precipitation response to a warming climate is often stated as the “wet gets wetter,” this response does not apply to east-west overturning circulations like the Pacific Walker circulation.
Editors’ Highlights
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Severe 2023 Drought: Sinking Carbon Sink in the Amazon
The Amazon forest has been a reliable carbon sink, soaking up some of humanity’s carbon emissions, but a severe drought in 2023 adds to growing concern that this ecosystem service is at risk.
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Human Effects on Background Atmosphere have Affected Mercury Chemistry
Atmospheric mercury chemistry has evolved over time due to changes in atmospheric composition, especially for changing concentrations of bromine radicals, hydroxyl radicals, and ozone.
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Future Hotspots of Hazardous Rivers in the Atmosphere
Atmospheric rivers can produce heavy precipitation and associated hazards worldwide. A new study identifies regions where these hazards have already, and will further, increase with global heating.
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Tectonic Modifications Shape Surface Environment and Landscape
Earth observation through ambient noise tomography explains links between tectonic modification, ancient geological records, and landscape evolution.
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Satellite View of the California Wildfires of January 2025
Satellite observations of the southern California wildfires of 2025 reveal that almost all the burned areas were reached by fire within 24 hours, and wildfires in residential areas burned more intensely than nearby natural vegetation fires at night.
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Boomerang Earthquakes Don’t Need Complex Faults
New simulations show earthquakes can reverse direction within seconds on simple, uniform faults, suggesting back-propagating subevents are more common than previously thought.
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Understanding Aerosol-Cloud Interactions is Pivotal for Improving Climate Predictions
Global cooperation and knowledge sharing are essential to improve our understanding of cloud formation and evolution through aerosol-cloud interaction.
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Slow and Fast Madden-Julian Oscillation Modes
The skill of Madden-Julian Oscillation (MJO) forecasts can be improved by identifying slow- and fast-MJO modes and their superposition.
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Why More Rain Doesn’t Mean More Erosion in Mountains
Erosion in mountain-basin systems driven by long-period climate variations is buffered by an erosion saturation effect, which weakens peak erosion and leads to reduced sediment flux.