New paper finds worst-case scenario is ice-free Arctic by year 2400

The Hockey Schtick
"A paper published today in Geophysical Research Letters finds that even under the most exaggerated "strongest" forcing scenario simulated by climate models, the Arctic "becomes summer ice-free by the end of the 21st century and year-round ice-free by the end of the 23rd century." Leaving aside that climate models offer little more than simulating a random walk, many alarmist climate scientists have had no shame from incorrectly predicting a year-round ice-free Arctic many times in the past or within the next two years.