Natural indicators of climate change, such as melting glaciers, changes in time of flowering of trees in spring, and bird migrations are excellent indicators of long-term changes in climate. The behavior of animals and the characteristics of plants can be biological proxies for long-term scientific measurements. They are an accumulated response to long-term shifts in the surroundings, and they are ... Full description.

This site offers links to educational weather and science resources. There are games and activities on clouds and lightning, the water cycle, hazardous weather, and our changing global climate. A Fun Fact of the Month provides weather-related trivia. Full description.

GreenHouse Gas Online catalogues greenhouse gas related articles published in over 100 peer-reviewed journals from around the world. Only journal articles with freely available abstracts are included. The latest general news and journal articles can be found listed by title, while links to archived material is available by topic. Pages devoted to background information on the various greenhouse gases, ... Full description.

This collection provides a wide array of visual resources and supporting material about the December 26, 2004 Indian Ocean Tsunami. Visualizations include simple animations, satellite photographs, Quicktime animations and tsunami models. The collection also contains visualizations related to other historical tsunamis and additional resources (beyond visualizations) about tsunamis. Resources can be ... Full description.

This National Soil Survey Center (NSSC) website provides details about teaching soils in the classroom. There is information for teachers about what soils are, how they form, how they are classified, and what the soil survey does. There are lesson plans and activities on soil erosion, organic matter, soil air, particle sizes, texture, and monoliths. The site offers downloadable poster and PowerPoint ... Full description.