character: Bill Nye
topic: Understanding Greenhouse Gases
grade: 12
subject: Chemistry
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character: Carl Sagan
topic: Atmospheric Science
grade: 12
subject: Chemistry
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character: Neil deGrasse Tyson
topic: Impact of Climate Change
grade: 12
subject: Chemistry
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character: David Attenborough
topic: Environmental Science and Conservation
grade: 12
subject: Chemistry
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