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This graph, based on key ice core data sets and recent monitoring programs, shows the variations in concentration of carbon dioxide (CO2) in the atmosphere during the last 400,000 years.
Subject: Environmental Science:Global Change and Climate:Climate Change:Anthropogenic causes, Environmental Science:Global Change and Climate:Climate Change, Environmental Science:Global Change and Climate, Geoscience:Atmospheric Science:Climate Change, Environmental Science:Global Change and Climate:Climate Change:Natural causes, Geoscience:Atmospheric Science:Climate Change:Anthropogenic causes, Natural causes Grade Level: High School (9-12), College Lower (13-14), Middle (6-8) Theme: Teach the Earth:Course Topics:Environmental Science, Atmospheric Science, Teach the Earth:Incorporating Societal Issues:Climate Change
