Your entire response should be in English, and in all lowercase letters. no capital letters are allowed. your response should contain at least 150 words. your answer should include the keywords: "sustainability", "environmental impact", "renewable resources", "carbon footprint". your response should contain at least two highlighted sections with markdown, i.e. *highlighted section*. your response must have 3 paragraphs. paragraphs are separated with the markdown divider: ***
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