This page describes El Nino and the Southern Oscillation and how they may contribute to severe weather and the destruction of sensitive ecosystems such as coral reefs. It features text, pictures, scientific illustrations, and links to satellite information and weather-related science activities. Full description.

Atmospheric scientists investigating the possibility that human influences are changing the Earth's climate confront a significant problem - how do we actually detect climate change? As they participate in this classroom activity, students will develop the understanding that long-term climate averages are the result of significant annual climate variability and that random climate variability makes ... Full description.

At this site, users can read and view pictures and videos that explain the mechanisms that trigger tsunamis, how they travel across great distances of the ocean, and what damage they cause. Full description.

This is a group of frequently asked questions and answers about Earth's magnetic field and poles, the magnetic compass, magnetic reversals, and geomagnetic models. Links to maps and illustrations are embedded in the text. Full description.

This site provides information on the vast collection of deep-sea core samples that are stored in Lamont-Doherty Earth Observatory's (LDEO) facility in Palisades, New York. Materials presented here include a summary of how cores are taken, processed, and stored, some results of examinations of cores, a searchable database of the cores themselves, and a sample history database. Full description.