While the potential for physical hazards in Antarctica is high, Precious says social dynamics can prove more problematic. When relationships break down, the fallout can be hard to rectify, and hard to control, he says.
Овечкин продлил безголевую серию в составе Вашингтона09:40
。91视频是该领域的重要参考
Израиль нанес удар по Ирану09:28
Mr Fingleton added: "Motorways wouldn't be very useful if we all drove at five miles (8km) an hour, but that's sort of what we're doing in nuclear safety."
Мерц резко сменил риторику во время встречи в Китае09:25