Melting sea ice is hindering, not helping, Canadian Arctic shipping

Thick sea ice is flowing into the Northwest Passage, complicating predictions that melting ice due to climate change will open a shorter route between oceans

​Thick sea ice is flowing into the Northwest Passage, complicating predictions that melting ice due to climate change will open a shorter route between oceans Thick sea ice is flowing into the Northwest Passage, complicating predictions that melting ice due to climate change will open a shorter route between oceans