National Geographic USA - 09.2019

104

EYES

ON THE

ICE

BY JENNIFER KINGSLEY

PHOTOGRAPHS

BY ESTHER HORVATH

IN GREENLAND,

RESEARCHERS FROM

AROUND THE WORLD

DOCUMENT THE

WARMING ARCTIC—AND

SHARE A SENSE OF

COMMUNITY.

A helium-filled balloon is tethered
at Flyger’s Hut, about a mile south-
east of Station Nord. The instrument
will measure air turbulence, solar
and terrestrial radiation, and black
carbon from the lowest layers of
the atmosphere—lower than an
airplane can fly safely.