Visitors to this non-profit site can access introductory information about wind turbines and the generation of electricity by wind power. For kids, there is an interactive tour of a wind turbine. For older learners, there is a tutorial that covers all aspects of wind energy. The site is available in several languages, including French and Spanish. Full description.

This site presents graphic plots of solar wind and magnetic field data from the Advanced Composition Explorer (ACE) spacecraft. Full description.

Biosphere reserves are sites recognized under UNESCO's Man and the Biosphere Programme which innovate and demonstrate approaches to conservation and sustainable development. They are internationally recognized, nominated by national governments and remain under sovereign jurisdiction of the states where they are located. Biosphere reserves serve in some ways as 'living laboratories' for testing out ... Full description.

The Convection And Moisture EXperiment (CAMEX) is a series of field research investigations sponsored by the Earth Science Enterprise of the National Aeronautics and Space Administration (NASA). CAMEX-3 collected data for research in tropical cyclone development, tracking, intensification, and landfalling impacts using NASA-funded aircraft and surface remote sensing instrumentation. At this site, ... Full description.

This online pamphlet discusses the concept of geologic time. Topics include the relative and radiometric time scales, the use of index fossils in making age determinations, and current thinking on the age of the Earth. Full description.

This site provides information about the TOMS instrument, its mission, space craft, and data products. Visitors can access same-day or archived data on aerosols, ozone, reflectivity, ultraviolet radiation, or volcanic gases. Teachers can choose from a selection of links to activities and lesson plans. Other materials include news articles, movies, and links to related sites. Full description.

This chapter from an online astronomy course briefly describes the formation of the solar system from an accretionary disk. Links to additional resources, a homework assignment, and a quiz are included. Full description.

This basic explanation of the greenhouse effect is accompanied by a diagram. Full description.

This graph shows the general trend of changing ice volume on the Earth over the last 750,000 years. The extent of ice is estimated using changes in the amount of different isotopes of oxygen found in planktonic foraminifera which occur as fossils. Full description.

This document provides an explanation of the factors that are thought to drive the growth and retreat of continental glaciers which spread across the Earth during four periods of geologic history. These factors are thought ot be related to variations in Earth's orbit. Full description.