By Paul Homewood
More junk science from the Arctic alarmists at NOAA:
The Arctic Ocean once froze reliably every year. Those days are over.
Arctic sea ice extent has been measured by satellites since the 1970s. And scientists can sample ice cores, permafrost records, and tree rings to make some assumptions about the sea ice extent going back 1,500 years. And when you put that all on a chart, well, it looks a little scary.
In December, NOAA released its latest annual Arctic Report Card, which analyzes the state of the frozen ocean at the top of our world. Overall, it’s not good.
“The Arctic is going through the most unprecedented transition in human history,” Jeremy Mathis, director of NOAA’s Arctic research program, said at a press conference. “This year’s observations confirm that the Arctic shows no signs of returning to the reliably frozen state it was in just a decade ago.”
The report, which you can read in full here, compiles trends that scientists have been seeing for years. The Arctic is warming at twice the rate of the rest of the world. And 2017 saw a new record low for the maximum sea ice extent (i.e., how much of the Arctic ocean freezes in the coldest depths of winter).
That huge drop-off at the end? That’s “the largest magnitude decline in sea ice, and the greatest sustained rate in sea ice decline in that 1,500-year record,” said Emily Osborne, the NOAA scientist who compiled the data for the chart.
Paul Homewood comments: The chart is supposed to show summer sea ice minima, as described here.
As we know from DMI, sea ice extent has stabilised in summer, and has slightly increased since 2007.
It has also got considerable thicker in the last decade as well:
It is claimed that, “the Arctic is warming at twice the rate of the rest of the world.”
In fact, Arctic temperatures have varied little in the last decade:
Temperatures recently are no higher than in the 1930s and 40s. The cycle we can see is connected with the AMO.
The claim that, the Arctic is warming at twice the rate of the rest of the world, is simply a reflection of the upward part of the cycle. Changes in Arctic temperatures are invariably amplified, either warming faster or cooling faster.
On longer time scales there is nothing at all unusual about Arctic temperatures:
As for the Greenland ice sheet, also touted in the report, nothing unusual is happening:
The Arctic Report Card comes from NOAA’s Arctic Program, which needs to continue pumping out scary propaganda to keep its funding coming in.