character: Dr. James Hansen
topic: Impact of Greenhouse Gases on Global Warming
grade: 12
subject: Chemistry
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character: Intergovernmental Panel on Climate Change (IPCC)
topic: Climate Change Assessment Reports
grade: 12
subject: Chemistry
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character: Al Gore
topic: Advocacy on Global Warming and Climate Change
grade: 12
subject: Chemistry
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character: Michael Mann
topic: Climate Change and the Hockey Stick Graph
grade: 12
subject: Chemistry
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