Dấu chân sinh thái, bảo vệ khí hậu, hủy hoại môi trường, khí hậu thay đổi, thứ sáu cho tương lai, Sự bền vững, bảo vệ môi trương, màu xanh lá, Môi trường, bảo tồn thiên nhiên, bền vững Tải xuống miễn phí
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