This Arctic heat wave has been unusually long-lived. The darkest reds on this map of the Arctic are areas that were more than 14 degrees Fahrenheit warmer in the spring of 2020 compared to the recent 15-year average. Joshua Stevens/NASA Earth Observatory Mark Serreze, University of Colorado Boulder The Arctic heat wave that sent Siberian … Continue reading 100 degrees in Siberia? 5 ways the extreme Arctic heatwave follows a disturbing pattern