This sea route has been dismissed as too treacherous. China’s taking the risk

In the early hours of a late September morning, a container ship called the Istanbul Bridge set sail from China, destined for Europe and laden with cargo — everything from batteries to clothing. So far, so standard, but there’s a twist.

Instead of navigating south on a journey toward the Suez Canal, the ship pushed north to steer a course through the frigid water of the Arctic Ocean using the Northern Sea Route. The journey is seen as a major step forward in China’s quest to build out a “Polar Silk Road,” an infrastructure and shipping corridor across the top of the world, and it’s only made possible by climate change.

The icy landscape of the Arctic has transformed much faster than expected, as humans burn fossil fuels and heat the planet. The region is warming around four times th