An awardwinning author and photographer returns to the Arctic to document the effects of climate change.Forty years ago, the park ranger Jon Waterman took his first journey into the Alaskan Arctic, to the Noatak headwaters. He was astonished by the abundant wildlife, the strange landscape, and its otherworldly light—how the ̶frequent rain showers glow like lemonade poured out of the sky.” Taken with a new sense of wonder, he began to explore the North on several trips in the 198s.After a 3year absence from the Noatak, he returned with his son in 221. Amid a nowflooded river missing the onceplentiful caribou, he was shocked and heartbroken by the changes. The following year, in 222, he took one final journey ̶into the thaw” to document—for this lushly illustrated and scholarly book—the environmental and cultural changes wrought by the climate crisis.A widely published author and photographer, Waterman’s narrative alternates between