After Hormuz, China looks to the promise - and peril - of the Arctics ice silk road

China has established the first scheduled transit through the northern sea route, but questions remain over the environmental and political risksWhen Marco Rubio suggested that the world should look to new shipping lanes to bypass the logjammed strait of Hormuz, its unlikely he had the Arctics northern sea route in mind.And yet in recent months the promise of this 5,500km channel - cleaved through frozen seas by nuclear-powered icebreakers and illuminated by a sun that never dips below the Arcti...