character: Dr. Richard Feely
topic: Oceanographic Measurements of Carbon Dioxide Levels
grade: 9
subject: Science
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character: NASA Climate Scientist
topic: Impact of Carbon Dioxide on Ocean Acidification
grade: 9
subject: Science
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character: Climate Change Researcher
topic: Tracking Greenhouse Gas Emissions
grade: 9
subject: Science
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character: Marine Biologist
topic: Effects of Increased Carbon Dioxide on Marine Life
grade: 9
subject: Science
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