This exhibit from Exploratorium Exhibit Services simulates the formation of desert landscapes. The site provides a link to a QuickTime video of the exhibit.

This radio broadcast discusses how scientists' views of global warming have changed since the subject first emerged some 20 years ago. Topics include the nature of the warming process, once thought to be a gradual...

Mish Denlinger of San Francisco's Exploratorium created Auroras: Paintings in the Sky, a Web exhibit devoted to this beautiful celestial phenomenon. Visitors are introduced to how auroras are created, what they look from...

This video segment, adapted from a NOVA broadcast, provides an account of the 1995 avalanche that overran the fishing village of Flateyri, Iceland, killing 20 people. It also points out the unpredictability of such...

The Advanced Technology Environmental and Energy Center (ATEEC) provides this presentation from Dag Nummedal of the Colorado Energy Research Institute on climate change and mitigation options. This presentation is...