National Geographic : 2019 Sep
AS SOIL A COUPLE OF FEET DEEP GOES FROM FROZEN TO MUSH, THE RELEASE OF CARBON COULD PUSH CLIMATE CHANGE TO A TIPPING POINT. SEPTEMBER | FROM THE EDITOR IN THE SPRING of 2018, my husband and I went to the Arctic on a National Geo- graphic expedition. We’d never been before and were struck by the scale of its rugged beauty, the white-blue glaciers glinting in the midnight sun, and the abundant wildlife. I’ll never forget seeing an enormous walrus face down a young polar bear (which wisely decided to move along). I also won’t forget the ship’s captain, Leif Skog, announcing that we had traveled farther north than this expedi- tion ever had before. We knew that was saying something—Skog had been nav- igating polar waters for four decades. How amazing, we initially thought. And then, of course, the experience turned sobering as we realized why we’d gotten so far: because sea ice that normally halts the ship’s northward progress had melted. In this issue we look at that and other effects of climate change on the Arctic, from shifting geo- political power to thawing permafrost. As soil a couple of feet deep goes from frozen to mush, the release of carbon could push climate change to a tipping point, writer Craig Welch reports in “The Threat Below” in this issue. With the Arctic warming much faster than the rest of the planet, Welch writes, “In 2017 tundra in Greenland faced its worst known wildfire.” Mean- while, “Lakselv, Norway, 240 miles above the Arctic Circle, recorded a blistering 32 degrees Celsius, or 90 degrees Fahrenheit. Arctic reindeer hid in road tunnels for relief.” Like what I saw in the Arctic, what you’ll read here is thought provoking. May it also be galvanizing, spurring eachofustodowhatwecantoslowthe advance of climate change. Thank you for reading National Geographic. j The State of the Arctic BY SUSAN GOLDBERG PHOTOGRAPH BY KATIE ORLINSKY SPECIAL ISSUE This Inupiat youngster accompanied a hunting party that unsuccessfully sought bearded seals in the Arctic Ocean near Utqiaġvik (Barrow), Alaska. Warming weather has affected the Inupiat’s hunts, the community’s main source of food.