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Tomorrow’s Tide

On a pilgrimage to Glacier National Park, Ethan Siegel notes “the hike to Grinnell Glacier is nearly a mile longer than it was when the trail was first constructed.” Worldwide, nearly 90% of glaciers are shrinking, and “glacial melt is contributing noticeably to the overall sea level of our planet.” The park itself will be glacier-free within twenty years—but don’t everyone hop on a plane at once. Meanwhile, ice is also melting at astounding rates in the Arctic. On A Few Things Ill Considered, Coby Beck says that last month’s extent was “640,000 square kilometers below the previous record set in 2007.”