“After a summer that saw record Siberian fires and polar temperatures topping 100 degrees Fahrenheit, along with near record low sea ice extent in September, the Arctic Ocean’s refreeze has slowed to a crawl.
The Laptev Sea and East Siberian Sea are, at this point, failing to re-freeze as rapidly as in the past. Scientists see all of these worrying events, along with many other indicators including fast melting permafrost, as harbingers of a northern polar region that may be entering a new climate regime.
Models predict the Arctic will be ice-free in summer by 2040 or 2050, with unforeseen negative impacts not only in the Far North, but on people, economies and ecosystems around the globe. One major concern: scientists worry how changes in the Arctic might alter temperate weather systems, impacting global food security.”
Sharon Guynup reports for Mongabay October 26, 2020.