Warming surface waters and increased stratification result in uneven loss of dissolved oxygen across the Pacific basin that shifts water mass age.

NASA’s MERRA-2 reanalysis of past weather and climate reveals substantial shifts in extreme heat seasonality over the past 45 years.

Mineral dust-activated halogen chemistry is an important yet under-studied natural sink of the tropospheric ozone with implications for the Earth’s oxidative balance, crop yields, and human health.

Extreme storms in the tropical regions are expanding and becoming more persistent with climate warming, resulting in higher storm rainfall volumes while peak intensity remains unchanged.

Airborne Visible Infrared Imaging Spectrometer 3 (AVIRIS-3) observations supported situational awareness, inspections, infrastructure assessment, and debris-flow management.

Numerical models and theoretical considerations deliver new insights on how waves affect the movement of tracers in wave-rich environments.

Human fingerprints, marked by tropospheric warming and stratospheric cooling, are evident in Earth's changing atmospheric thermal structure A claim to the contrary in a recent report of the US De...

Worldwide patterns of increased plant water stress reveal water limits to vegetation greening.

AGU editors recognize the contributions of peer reviewers in 2025, whose expertise and dedication were integral to the advancement of the Earth and space sciences.

Not only can the magnetometer on NASA’s MAVEN satellite track magnetic fields on Mars; it can also track atmospheric circulation – using machine learning.

Wobbles of the moon’s icy shell may set off waves in the subsurface ocean that sculpt water-spewing fissures from beneath.

Plasma density irregularity is nothing new on Mars, but the accompanying magnetic field irregularity observed on NASA’s MAVEN satellite is.

Multi-century simulations show modern mean droughts are less exceptional when long-term forced and unforced variability is considered Extreme 30-year drought severity exceeds the past 600-year ra...

Twenty ensemble members from a 600-year climate simulation reveal that drought extremes are intensifying more rapidly than in the past with respect to moderate droughts.

In situ evidence of bidirectional wave-particle energy transfer enabled by local magnetic-field gradient reveals an inhomogeneity-driven pathway for energy redistribution.

In fault gouge, fluids drive chemical healing by cementing grains, a mechanism for seismic slip in rocks frictionally expected to creep. This cohesion matters for fault stability.

By modeling dehydration-driven fluid pressure, a new study links deep fluids to where megathrust earthquakes end and slow slip begins.

Tire particles might seem tasty, if you’re a fish—but a new study shows how this pervasive microplastic can affect growth and behavior in marine species.

Autogenic processes of sediment storage and erosion regulate shoreline movement and therefore, where coastal wetlands develop, setting up subsurface areas of preserved organic matter, blue carbon.

The Global South, in particular, is suffering from the consequences of global heating. A new study quantifies heat stress in India by projecting it during the critical seasons.

Our trusted colleague and friend of more than 25 years, Francois William Primeau, passed away on Friday.

Undulations in detached auroral arcs unveil intricate interactions between energetic ions and electromagnetic ion cyclotron waves at plasmaspheric plume boundary.

Scientists present a new method for estimating the density of the upper atmosphere to account for atmospheric drag when predicting satellite trajectory.

Intensively managed agricultural sites show behavioral shifts of the critical zone system and subsystems thus impacting predictability.

Marine Cloud Brightening (MCB) is a Solar Radiation Management (SRM) solution to cool the planet by changing the albedo of low-altitude marine clouds to increase reflected shortwave radiation.

A trait-based physiological plant hydraulics model predicts drought response, and annual variation, in leaf area index (LAI) across dry forests This prediction of LAI matches or outperforms droug...

Global analysis of satellite data and river flow records show that higher flow intermittency after climate change may lead to an increasing number of threads in braided rivers, thus impacting ecosyste...

New research found that adjusting a key model variable may give more accurate predictions of glacial retreat.

Natural river breezes create clouds over the Amazon that mimic the signs of pollution, complicating climate impact assessments.

The impact of geomagnetic storms, which can disrupt satellites, GPS, and power grids, is shown to depend on their onset timing.

High-resolution radio observations link the chemistry of local moons and comets to the birth environments of distant exoplanets.

On the gas giant, the strength and frequency of lightning appear to be more diverse than previously thought.

The browning or loss of tree leaves that can be observed during droughts may be a coping mechanism to deal with dry circumstances by avoiding additional water stress.

Data centers powering artificial intelligence consume significant amounts of water, highlighting the need for greater transparency regarding water use in both existing and planned facilities.

Connections between fast and slow parts of the atmosphere are analyzed over 35 years to understand the links between storms, weather regimes, and atmospheric wave breaking events.

Surface meltwater ponding and drainage in the Greenland Ice Sheet is analyzed at high spatial and temporal resolution through SkySat imagery and deep learning.

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.

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.

Earth observation through ambient noise tomography explains links between tectonic modification, ancient geological records, and landscape evolution.