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This site describes flooding of the Red River, which crosses the United States/Canadian Border at the Minnesota-North Dakota Boundary. It has sections on dendrochronology, past floods, climate change and related publications. The site also links to many other geologic sites. Full description.
Grade level: College (13-14), College (15-16)
Resource type: Ref. material, Abstract / Summary
Subject: Climatology, Hydrology, Natural hazards
 
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This site provides basic information about factors commonly analyzed in water quality studies of drinking water, waste water and natural water. The factors are listed alphabetically with descriptions and explanations about what the results of measurements mean in environmental terms. Full description.
Grade level: College (13-14), College (15-16)
Resource type: Ref. material, Abstract / Summary
Subject: Environmental science, Hydrology
 
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This site is a description of the ozone depletion problem with maps, movies and computer simulations of the Antarctic ozone hole. It has a history section, a section on current ozone loss, a detailed section on the chemistry of the stratosphere, and a description of the latest research. Full description.
Grade level: High (9-12), College (13-14), College (15-16), Graduate / Professional
Resource type: Module / Unit, Illustration - artistic, Illustration - scientific, Imagery - remotely sensed, Map, Photograph, Video, Visualization - scientific, Ref. material
Subject: Atmospheric science, Environmental science
 
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Curricular Resource Lib. (CURL)    Browse collection
DLESE Community Collection (DCC)     Browse collection