character: Neil deGrasse Tyson
topic: Understanding Climate Change and its Effects
grade: 12
subject: Chemistry
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character: James Hansen
topic: Climate Change Science and Advocacy
grade: 12
subject: Chemistry
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character: Bill Nye
topic: The Impact of Climate Change on Ecosystems
grade: 12
subject: Chemistry
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character: Elizabeth Kolbert
topic: The Sixth Extinction and Climate Change
grade: 12
subject: Chemistry
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