1. He then became the first person to cross the Arctic alone from Siberia to Canada over the North Pole in 2001.
2. the Arctic Pole
2. Arctic sea ice could break apart completely at the North Pole this year, allowing ships to sail over the normally frozen top of the world.
3. Their tasks include researching the impact of global warming on the Himalayan glaciers, which are the world's second largest glacier cluster following the Arctic Pole.
4. It was founded on the permanently moving Arctic ice last April and has almost completed a full circle around the North Pole.
5. The convention states no country owns the North Pole or the region of the Arctic Ocean surrounding it.
6. It is the shortest way through the central Arctic Ocean, the passage through which depends on dramatic reductions of North Pole ice thickness.
7. The Arctic Pole would see no ice in summer within 30 years if the trend is not reversed.