By Dr. Sebastian L√ºning and Prof. Fritz Vahrenholt
[German text translated/edited by P Gosselin]
Heat waves in the Arctic ‚Äì climate scientists sound the alarm
[…] During the winter in the Arctic temperatures reached near the melting point. It wasn’t the only weather extreme that climate scientists reported on. Such a heat wave occurred in the Arctic at least three times at the start of 2017, so reported the World Weather Organisation (WMO) in Geneva. Mighty Atlantic currents had delivered warm, moist air to the Arctic. At the peak of winter in the period when it should be freezing, temperatures reached near freezing on some days. The polar jet stream ‚Äì a wind current that circles the planet at high altitudes ‚Äì thus impacts the global weather.”
Do we really find ourselves on the verge of disaster? Is it getting hotter and hotter in the Arctic?
Let’s look at the HadCRUT4 temperatures in Arctic (Fig. 1). One clearly sees the warming phase of 1990-2005. Before and after that there were a bit wavy temperature plateaus. There hasn’t been any significant warming in the Arctic in 10 years.
Now let’s extend the time scale and look back 100 years. What a surprise: In the 1930s and 1940s there were two heat decades in the Arctic which were almost as warm as today (Fig. 2). This is just a small fact that went missing in the WMO press release and in the derwesten.de article.