Related Links

• NASA Earth Observatory
• Astronomy Picture of the Day
• University of Miami Geodesy Lab
• National Oceanic & Atmospheric Administration (NOAA)
• Smithsonian National Museum of Natural History
• An Inconvenient Truth

El Nino

• What is an El Nino (ENSO)? (NOAA/PMEL/TAO)
• El Nino Educational Module (USRA-ESSE)
• El Nino Theme Page (NOAA/PMEL/TAO)ElNiño / El Nino Links

Tectonics

• This Dynamic Earth--Contents [USGS]
• Tectonic Plate Motion

Volcanoes

• The Electronic Volcano
• Remote Sensing of Volcanoes, Volcano/Climate Interactions
• Global Volcanism Program (Smithsonian Institution)
• Update on Current Volcanic Activity