By studying past volcanic eruptions, scientists find that the amount of water vapor reaching the stratosphere during moderately explosive eruptions may not be contributing to the greenhouse effect.
Hazards & Disasters
Posted inResearch Spotlights
Cold Temperatures Set Off Slow-Moving Landslides
Falling ground temperatures in the cold season are found to trigger shallow, slow-moving landslides on slopes with clayey soil.
Posted inResearch Spotlights
Predicting Space Weather, Protecting Satellites
A new model predicts electron and ion fluxes at geosynchronous orbit an hour ahead of time, allowing satellite operators to protect their instruments.
Posted inResearch Spotlights
Tracking Ions at the Edge of the Atmosphere
The first results from a recently launched satellite hold promise for studying solar storms, the very top of Earth's ionosphere, and how the atmosphere is evolving.
Posted inNews
Tiny, Deep Quakes Increase on San Andreas as Tides Tug on Fault
When the gravity of the Sun and Moon causes Earth's crust to bulge every 2 weeks, slow-moving earthquakes proliferate in the lower reaches of the San Andreas, a new study finds.
Posted inResearch Spotlights
Tracking Down Elusive Origins of Kazakhstan's 1889 Chilik Quake
New fieldwork and satellite data suggest that three faults may have caused a large earthquake near Almaty, Kazakhstan, more than a century ago.
Posted inNews
Earth Fissures May No Longer Get Mapped in Arizona
A program that monitors giant cracks in the ground that suddenly appear after heavy rain could become a casualty of budget cuts to the Arizona Geological Survey.
Posted inFeatures
Global Risks and Research Priorities for Coastal Subsidence
Some of the world's largest cities are sinking faster than the oceans are rising. Humans are part of the problem, but we can also be part of the solution through monitoring and modeling.
Posted inScience Updates
Cameroon's Lake Nyos Gas Burst: 30 Years Later
9th Workshop of the IAVCEI-Commission on Volcanic Lakes (CVL9); Cameroon, 14–24 March 2016
Posted inAGU News
Closing the Air Quality Data Gap in the Developing World
How a husband-and-wife team created the world's first open access, open source international air quality data hub—a global resource for health organizations, policy makers, and others.