Thời tiết bất thường vì sao?
Cập nhật: 13:59 18/02/2014 GMT+7
Nghiên cứu mới trình bày tại Hiệp hội Mỹ về các tiến bộ khoa học (AAAS) tại Chicago nhận định biến đổi khí hậu, thể hiện qua sự nóng lên tại Bắc cực, là nguyên nhân chính dẫn đến tình trạng thời tiết mưa bão ...
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