在北极地区，今年 2 月的海冰覆盖面积持续低于平均水平 8%，相当于英国国土面积大小的冰面消失。这是北极地区连续第三个月创下月度历史新低。与此同时，南极地区在过去两年也呈现出长期的海冰减少趋势。尽管去年 12 ...

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...