as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
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rank travel modes in terms of environmental impact, from least to most harmful.
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in terms of environmental impact, the least harmful forms of travel are walking, biking, and taking public transit, since these modes of travel do not involve any emissions from burning fossil fuels. the most harmful forms of travel are airplanes, cars, and boats, as these forms of travel require a lot of fuel and release large amounts of carbon dioxide into the atmosphere.
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