Financial Express: The Arctic sea ice cover, melting rapidly due to global warming, will be so thin by 2050 that ships will be able to sail directly across the North Pole for the first time, experts have predicted. Researchers said it could also lead to unprecedented geo-political tensions between countries that have territorial claims in the region. Global warming will make these frigid routes much more accessible than ever imagined by melting an unprecedented amount of sea ice during the late summer, a University...