Laboratories outside Japan have validated the results. Marine radioactivity levels from the nuclear disaster have fallen, but questions remain years after the meltdown.
Hazards & Disasters
Posted inScience Updates
An 1888 Volcanic Collapse Becomes a Benchmark for Tsunami Models
When volcanic mountains slide into the sea, they trigger tsunamis. How big are these waves, and how far away can they do damage? Ritter Island provides some answers.
Posted inNews
Past FEMA Head Urges Smarter Rebuilding After Natural Disasters
Craig Fugate says the United States has an opportunity to rebuild more resiliently if Congress doesn’t simply provide relief money but also requires rebuilding to higher standards.
Posted inResearch Spotlights
What Causes Ecological Shifts?
A new information-processing framework helps researchers tease out the factors driving ecological shifts over short timescales.
Posted inOpinions
To Understand Future Solar Activity, One Has to Know the Past
Short-term funding strategies present serious problems for programs like solar activity studies, where observations and analysis span decades or longer.
Posted inScience Updates
Drone Peers into Open Volcanic Vents
An unmanned aerial vehicle provided the high-resolution data that allowed scientists to construct their first detailed map of erupting vents at Stromboli, one of the world’s most active volcanoes.
Posted inResearch Spotlights
California Floods Linked to Atmospheric Water Vapor “Rivers”
Narrow atmospheric streams of water vapor that deliver heavy rains are more commonly associated with floods and debris flows in northern California than with flash floods in southern California.
Posted inResearch Spotlights
A New Baseline to Monitor Earth’s Dynamic Surface
Researchers devise a new mathematical approach to combine space- and ground-based observations into an alternative reference frame for monitoring the changing positions of Earth’s features.
Posted inNews
Giant Snails’ Century-Old Shells Recorded Monsoon Rainfall
Researchers explored past precipitation in India using shells from very large land snails collected there in 1918 and preserved in a British museum.
Posted inNews
Unprecedented Hurricane Season Sees Widespread Damage
This hurricane season has broken multiple records already.