Five years ago, USA Today and the National Snow and Ice Data Center in Boulder, Colorado said that Arctic sea ice was at a record winter low and temperatures in the Arctic were 15F (9C) above normal. And they announced that it was due to global warming.
Five years later, Arctic sea ice is normal, and Antarctic sea ice is near a record high for the date.
One hundred years ago, Arctic ocean temperatures were 23 degrees above normal, and the ocean around Svalbard never froze over.
And 6,000 years ago, the Arctic might have been ice-free.
via Real Climate Science
March 13, 2021 at 07:42AM