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This activity presents a digital interactive where students identify anthropogenic sources of carbon dioxide and their relative contribution to carbon enrichment of the atmosphere. Students then obtain a photograph pair of a scene in their community, and identify sources of atmospheric carbon dioxide that did not exist in the earlier photograph. Alternatively, they can interview community members to obtain the same information. This activity is supported by a textbook chapter, How is the Atmosphere Changing?, part of the unit, Climate Change, in Global Systems Science (GSS), an interdisciplinary course for high school students that emphasizes how scientists from a wide variety of fields work together to understand significant problems of global impact.
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