The New Yorker:

What the fate of Greenland means for the rest of the Earth.

By Elizabeth Kolbert

In the middle of the night in the middle of the summer in the middle of the Greenland ice sheet, I woke to find myself with a blinding headache. An anxious person living in anxious times, I’ve had plenty of headaches, but this one felt different, as if someone had taken a mallet to my sinuses. I’d flown up to the ice the previous afternoon, to a research station owned and operated by the National Science Foundation. The station, called Summit, sits ten thousand five hundred and thirty feet above sea level. The first person I’d met upon arriving was the resident doctor, who warned me and a few other newcomers to expect to experience altitude sickness. In most cases, he said, this would produce only passing, hangover-like symptoms; on occasion, though, it could result in brain swelling and death. Belatedly, I realized that I’d neglected to ask how to tell the difference.

N.S.F. Summit Station—according to the agency’s many rules, this is how visiting journalists are required to refer to the place—was erected in the late nineteen-eighties. Initially, it was occupied only in the summer; now a small crew remains through the winter, when, at Summit’s latitude—seventy-two degrees north—the sun never clears the horizon. The station’s main structure is known as the Big House. It resembles a double-wide trailer and teeters almost thirty feet above the ice, on metal pilings. Arrayed around it are a weather station, also elevated on pilings; a couple of very chilly outhouses; several tanks of jet fuel; and an emergency shelter that’s shaped like a watermelon and called the Tomato. Some of the station’s residents used to sleep in tents, but a few years ago a polar bear showed up, so the tents have been replaced by metal sheds.

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