How long might the Arctic's 'Last Ice' area endure?
How long might the Arctic's 'Last Ice' area endure? Picture a logjam made of ice. And a bottleneck. The large blocks of ice dam up a narrow passage. And prevent other large blocks of ice from passing through, while allowing smaller ones passage. The longer that ice stays in place, the less time the ice upstream has to proceed southward. That sums up the real-life situation on the upper edges of the Canadian Arctic Archipelago and Greenland, home to the world’s oldest and thickest sea ice. Canada in 2019 designated the area the Tuvaijuittuq Marine Protected Area. To scientists and others it...