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»Die letzten 5 Jahre waren die 5 heißesten seit 1880«

Weltklimareport 2019 der NASA und NOAA (engl. Originalfassung), 15.1.2020

The year 2019 was the second warmest year in the 140-year record, with a global land and ocean surface temperature departure from average of +0.95°C. This value is only 0.04°C less than the record high value set in 2016. The five warmest years in the 1880–2019 record have all occurred since 2015, while nine of the 10 warmest years have occurred since 2005. The year 2019 marks the 43rd consecutive year (since 1977) with global land and ocean temperatures, at least nominally, above the 20th century average.

Record high annual temperatures over land surfaces were measured across parts of central Europe, Asia, Australia, southern Africa, Madagascar, New Zealand, North America, and eastern South America. Record high sea surface temperatures were observed across parts of all oceans. No land or ocean areas were record cold for the year.

Warmer-than-average conditions were present across much of western and central Europe during late February, with several locations setting new February maximum temperature records. For the first time, the United Kingdom recorded a maximum temperature over 20.0°C during a winter month.

The ocean heating is irrefutable and a key measure of the Earth's energy imbalance: the excess greenhouse gases in the air trap more heat inside the climate system and drives global warming. More than 90% of the heat accumulates in the ocean because of its large heat capacity, and the other heating is manifested in warming the atmosphere, warming and drying land, and melting land and sea ice. There are no reasonable alternatives aside from the human emissions of heat-trapping gases.


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