character: Dr. Michael Lee
topic: Alternative Refrigerants: Environmental Impacts
grade: 12
subject: Chemistry
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character: Dr. Jane Smith
topic: Impact of Refrigerants on Global Warming
grade: 12
subject: Chemistry
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character: Professor Anthony Brown
topic: Sustainable Cooling Technologies
grade: 12
subject: Chemistry
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character: Dr. Sarah Davis
topic: Ozone Layer Depletion and Alternatives
grade: 12
subject: Chemistry
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