The world just experienced its hottest November on record while Europe had its warmest fall, according to an alarming report from the European Union's Copernicus Climate Change Service.
Temperatures were most elevated in a large region across northern Europe, Siberia and the Arctic Ocean, where sea ice was at the second lowest level ever seen in November.
The United States, South America, southern Africa, the Tibetan Plateau, eastern Antarctica and most of Australia also saw temperatures well above average.
Globally, November was almost 0.8 degrees Celsius (33.4 Fahrenheit) above the average for 1981-2010, and 0.1C (32.2F) higher than last year. And this unusual heat comes despite the cooling effect of La Niña.