PBS
Newton's Apple: Permafrost
How can something be preserved for 30,000 years? How can humans adapt to permafrost? What can permafrost tell us about our past and future climate? These questions are answered in this concise site.
US Geological Survey
Lake Baikal: A Touchstone for Global Change
This site is an interesting article about Lake Baikal in Russia. This unique lake is helping scientists to learn more about the patterns of ecological change in the world and about the history of the world.
Other
The Weather Company: The Weather Underground
Source of weather maps, forecasts, images, and data for the world. Maps include temperature, radar, visibility, wind, heat index, wind chill, humidity, and dew point.
US Geological Survey
Usgs: Earth Surface Dynamics (Research Activities)
This site from USGS provides several activities to help understand the interrelationships among earth surface processes, ecological systems, and human activities. Also included are links to new findings and programs concerning Earth...
US Geological Survey
Usgs: Desert Ecosystems
What elements are present in a desert ecosystem? What impact might humans have upon it? Learn more about the processes that affect desert ecosystems by visiting this site. Contains only one large illustration.