Illustrates observed consequences, as indicated by periods of unusually warm weather, coastal flooding, and changes in glaciers and polar regions.

Abrupt climate change, global warming and the environment. If the Gulf Stream slows down or stops, what could be the effects? Websites, articles, books and forums.

The HDGC Specialty Group promotes the interests of geographers who are united by exploration of human processes that affect or are affected by environmental changes.

Graphical presentation from the US Government National Environment Satellite, Data, and Information Service. Includes charts for sea surface temperatures, aerosol optical thickness, coral bleaching hotspots, precipitation, volcanic ash, and a snow and ice mapping system.

Provides an broad overview of the subject, including notes on diverse environmental topics and links to brief essays about threatened species and habitats. From the environmental organization EcoBridge.