BARROW, Alaska — Here at the top of the world, the news that Arctic sea ice has reached a new low — the smallest footprint since satellites began measuring it three decades ago — is not much of a surprise.
BARROW, Alaska — Here at the top of the world, the news that Arctic sea ice has reached a new low — the smallest footprint since satellites began measuring it three decades ago — is not much of a surprise.
The Arctic seas off the Alaska coast have been increasingly ice-free in recent years. On Monday, the gray, wind-driven surf churned vigorously along the northern coast, with no sign of ice anywhere under the low, fog-shrouded skies.
But it has been a strange summer here. Until a few weeks ago, there was more ice spread across the near-shore waters of the Beaufort and Chukchi seas than anyone can remember for the last several years — a curse for the engineers waiting to begin plumbing oil wells into the sea floor, but a blessing for Inupiat hunters, who have had an unusually easy time catching seals from ice floes close to home.
“It really seemed kind of like it was back in the days when the ice was like it used to be,” said Nayuk Leavitt, a Barrow resident who works on one of Shell Alaska’s oil spill response crews.
But the late-lingering near-shore ice in Alaska, now in full retreat, was not representative of what is going on most everywhere else in a gradually melting Arctic, scientists say. The National Snow and Ice Data Center in Colorado announced that Arctic sea ice had shrunk to 1.58 million square miles, the lowest expanse recorded since satellites began taking measurements in 1979.
That breaks a record of 1.61 million square miles set in 2007, and the shrinkage appears to be continuing: Ice is expected to keep melting through September.
Scientists said previous warm years had started a pattern of a melting of the multiyear ice that historically has clung to the poles. The newly thinner ice that remained from last year melted even easier this year, although temperatures weren’t warmer. The phenomenon is probably feeding on itself, scientists say.
“In the context of what’s happened in the last several years and throughout the satellite record, it’s an indication that the Arctic sea ice cover is fundamentally changing,” Walt Meier of the National Snow and Ice Data Center told reporters.
Although the late-lingering ice was a factor in delaying the start of the first offshore drilling here in more than two decades, Shell officials say the ice now has retreated to more than 20 miles north of the company’s primary drilling target, on the Berger prospect in the Chukchi Sea, about 70 miles offshore.
