. the wall maps in retreat to the arctic in the center. that will cause massive changes here and in other parts of the world. i think. the biggest challenge facing the whole in the future. a challenge or an opportunity. during the summer after the ice has melted but to taishan blooms along the coastline animal bones indicate that wildlife is returning . more and more scientists are coming to the region and several countries have claimed mining rights how will those rights be allocated. geologists can now study land that used to be covered in ice land that is rich in natural resources. the competition for the arctic treasure is fierce.