NOAA's Air Resource Laboratory (ARL) provides interactive transport and dispersion modeling at this website. Users can find instructions, trial versions, and a download for the Hybrid Single-Particle Lagrangian...

When a team of archeologists uncovered a mass grave in East London in the 1990s, they initially hypothesized that it must have been a burial site of victims of the plague. However, radiocarbon testing revealed that the...

Since the Hawaiian Islands were all created by volcanic activity, it is somewhat surprising that only the island of Hawaii now possesses any active volcanoes. Why did the volcanoes that built the other islands stop...

This resource explores the essential concepts involved in teaching students about recurrence intervals. It examines issues with 'random' events, probability, and recurrence intervals versus forecasting, and provides...

This United States Geological Survey (USGS) Volcano Hazards Program site contains links to selected material related to volcanic hazards. Users can access information about the volcanic hazards program, publications,...