This site provides a brief overview of processes and properties associated with global climate change and its rate of change, which is of current concern to scientists. The carbon cycle is discussed including its sources, sinks, and release agents along with the fact that it is critical to the biosphere and must continue cycling to support life on Earth. The information at this site should lead students to an understanding of carbon dioxide and the other major greenhouse gases, which is necessary to identify the current trends in atmospheric concentrations and climate change. Three other concepts addressed at this site include the profound effects living organisms in an ecosystem can have upon the local atmosphere, profound effects changes in vegetation can have upon wind speed, and the link of human activity to increased greenhouse gases in the atmosphere. This section serves as a reference for and includes links to seven classroom activities.
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