character: Dr. Helen C. Muir
topic: Role of Environmental Scientists in Sustainable Transportation
grade: 12
subject: Geography
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character: Professor Gary L. Stark
topic: Innovative Solutions for Sustainable Urban Transport
grade: 12
subject: Geography
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character: Sara P. Jenkins
topic: Impact of Public Transportation on Urban Sustainability
grade: 12
subject: Geography
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character: Engineer Mark T. Fields
topic: Technology Advances in Eco-friendly Transportation Systems
grade: 12
subject: Geography
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