The long-frozen Arctic region is shifting to an entirely new climate regime, marked by the escalating trends in ice melt, temperature rise and rainfall days, according to new research
From the deck of a research ship under a bright, clear sky, “ice pilot” Paul Ruzycki mused over how quickly the region was changing since he began helping ships spot and navigate between icebergs in 1996.
“We haven’t gone back at all to anything from 30 to 40 years ago,” said climatologist Julienne Stroeve at the National Snow and Ice Data Center in Boulder, Colorado. And as climate change continues, scientists say the sea ice is unlikely to recover to past levels. Sea ice coverage minimums, in particular, are now about 31% lower than in the decade after 1979, when satellite observations began. The ice has also lost about two-thirds of its bulk, as much of the thicker ice layer built up over years has long since melted away. The current ice regime actually began about two decades ago, the study found.
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