The receding ice cap in Greenland, and the melting of sea ice in the Arctic Ocean, are both threats and opportunities for his region, argues Mr Kleist.

• Kleist给出这样的解释：格陵兰日趋变小的冰盖和北冰洋的海上融冰对这个地区来说其实既是威胁，也是一种机会。