Norway is having its warmest autumn ever, with the past three months seen as a block setting a record high.
Norway's temperature records are over 100 years old, and with November predicted to go out as mildly as it has been so far, the new record seems safe.
On the mainland the temperature has been 1.5C-4C higher than normal, with the greatest deviation seen in southern and eastern Norway.
In fact the greatest deviation from the norm has been seen on Arctic Svalbard, which has had temperatures fully 6C above the norm.
Indian summer
Indian summer is a name given to a period of sunny, warm weather in autumn, not long before winter. This time can be in late October or early November (Northern hemisphere) / late April or early May (Southern hemisphere), usually sometime after the first frost. It can persist for just a few days or weeks.
Global warming
An issue of major concern is the possible effect of the burning of fossil fuels and other contributers to the increase of carbon dioxide in the atmosphere. The action of carbon dioxide in trapping infrared radiation is called the greenhouse effect. It may measurably increase the overall average temperature of the Earth, which could have disastrous consequences. Sometimes the effects of the greenhouse effect are stated in terms of the albedo of the Earth, the overall average reflection coefficient.
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