Bắc Cực thách thức quy luật tự nhiên
heo tính toán của giới khoa học, Bắc Cực sẽ lạnh dần do những thay đổi trong quỹ đạo trái đất khiến nó ngày càng nhận được ít ánh sáng mặt trời hơn. Nhưng nhiệt độ ở cực bắc của trái đất đã lên tới mức cao nhất trong vòng 2.000 năm.Môi trường sống của gấu trắng tại Bắc Cực ngày càng thu hẹp do tình trạng tan băng. Ảnh: priceofoil.org.Darrell S.
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