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This report provides an overview of the exchange of greenhouse gases, their influences on climate, viability of ecosystems, distribution of biomes, quantities of surface- and ground-water, and some research projects in place to investigate these influences. Topics include lake-atmosphere carbon dioxide exchange, sequestering and exchange of atmospheric carbon dioxide in boreal and subalpine forests, ... Full description.
Grade level: College (13-14), College (15-16), Graduate / Professional
Resource type: Report
Subject: Atmospheric science, Chemistry
 
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This resource introduces students to the idea of saline water. Topics include how saline water is defined and how dissolved salt concentrations are expressed (parts per million). Parameters for the various ranges of salinity (fresh to highly saline, or seawater) are also presented, and there is a brief discussion of water quality considerations regarding saline water. Links to additional information ... Full description.
Grade level: Middle (6-8), High (9-12)
Resource type: Ref. material
Subject: Chemistry, Environmental science, Hydrology
 
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This fact sheet provides an overview of the gases emitted by volcanoes, which consist mostly of water vapor, carbon dioxide, and sulfur dioxide. Topics include reasons for studying them, potential hazards, methods for studying them, and some facts about the gases emitted by the eruption of Mount St. Helens. A downloadable, printable version is available. Full description.
Grade level: High (9-12), College (13-14)
Resource type: Illustration - scientific, Ref. material
Subject: Atmospheric science, Chemistry, Climatology, Natural hazards
 
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