Independent: The loss if sea ice in the Arctic will allow ships to navigate freely across the North Pole by the middle of the century and could lead to unprecedented geo-political tensions between countries that have territorial claims in the region, scientists said.
Ice-breaking ships that are only moderately strengthened against sea ice will be able to cross the Arctic Ocean with impunity during the late summer months starting from about 2050, the scientists found in a study of how the loss of the floating...